Canada tracked suspected Chinese spy balloon over Canadian airspace since last weekend: sources
The suspected Chinese surveillance balloon that was found floating over sensitive military sites in the western United States had been tracked by Canada's government since last weekend as it passed through Canadians airspace, sources tell CTV News.
Canadian officials have not publicly stated whether the massive high-altitude balloon entered Canadian airspace. But sources told CTV News it had passed over the Canadian Arctic, Alberta and Saskatchewan before it was spotted over Montana on Thursday, as it flew over a nuclear launch site. Sources told CTV News it was tracked the entire time it was in Canadian airspace.
After being flagged by Norad, the joint U.S.-Canadian agency responsible for air defence in both nations, U.S. fighter jets investigated the balloon and determined it wasn't fitted with any weapons, but was equipped with high-resolutions cameras.
Even though Canadian officials had known about the balloon since the weekend, the Department of National Defence only confirmed it had been tracking the balloon late Thursday night, after the U.S. had announced the spotting of the balloon.
When asked about why the public was never informed about the balloon until after it had entered U.S. airspace, Public Safety Minister Marco Mendicino cited the sensitivity of the timing of the information.
"We have to strike that balance and make sure that we are not in any way compromising our operations and the techniques that we use to protect Canadians. But we're upfront about what we need to do and when we can share that information," he told CTV News Channel's Power Play on Friday.
"We do, and we work closely with our allies on that front as well. And we'll continue to do so that we can protect our perimeter, our sovereignty and our national security."
A statement from the Defence Department also mentioned it was monitoring a "potential second incident" but did not elaborate further. Sources told CTV News that a smaller object may have been released from the balloon that might pose a risk to planes. A flight advisory was issued to pilots in Alberta and Saskatchewan in response.
Sources also told CTV News U.S. intelligence knows of a total of at least four of these balloons from China sent to other countries, beyond the one currently over the U.S. That includes the one the Pentagon confirmed late Friday night floating over Latin America.
This incident comes at a time of heightened tensions between China and the West. In a statement, the Chinese foreign ministry said the balloon did come from China and apologized for its entry into U.S. airspace, but insisted the balloon was used for civilian research purposes rather than espionage.
U.S. Secretary of State Antony Blinken was set to visit Beijing on Friday for high-stakes talks, but the visit was abruptly cancelled. Global Affairs Canada (GAC) also announced it had summoned China's ambassador, Cong Peiwu.
"China's ambassador to Canada was summoned by officials at Global Affairs Canada," GAC spokeswoman Charlotte MacLeod said in a statement on Friday. "We will continue to vigorously express our position to Chinese officials through multiple channels."
With files from CTV National News Parliament Hill Correspondent Kevin Gallagher, The Associated Press and The Canadian Press.
IN DEPTH
Budget 2023 prioritizes pocketbook help and clean economy, deficit projected at $40.1B
In the 2023 federal budget, the government is unveiling continued deficit spending targeted at Canadians' pocketbooks, public health care and the clean economy.

'Everything is interwoven': Trudeau and Biden vow continued Canada-U.S. collaboration during historic visit
U.S President Joe Biden and Prime Minister Justin Trudeau have announced updates on a number of cross-border issues, after a day of meetings on Parliament Hill.
FACT CHECK | Popular e-petition calling for Canada to allow trans people to claim asylum, but that right is 'already established'
More than 130,000 people have signed an e-petition calling on Canada to give transgender and non-binary people fleeing harmful laws in their home countries the right to claim asylum, but that's already possible in this country. Advocates say the popularity of the proposal shows politicians that Canadians want the government to affirm its welcoming position.
Trudeau met threshold to invoke Emergencies Act, commission finds
The Public Order Emergency Commission has concluded that the federal government met the threshold for invoking the Emergencies Act to bring an end to the 'Freedom Convoy' protests and blockades.
PM Trudeau presents premiers $196B health-care funding deal, with $46B in new funding over the next decade
The federal government is pledging to increase health funding to Canada's provinces and territories by $196.1 billion over the next 10 years, in a long-awaited deal aimed at addressing Canada's crumbling health-care systems with $46.2 billion in new funding.
Opinion
opinion | Don Martin's sorry-to-be-cynical prediction on the federal budget
The only thing most Canadians will remember about the budget this time next week is how the booze tax increase was reduced to two per cent from six, writes Don Martin in a column for CTVNews.ca.

opinion | Don Martin: Beware the friendly face of Joe Biden. He's just not that into us.
Joe Biden comes for a sleepover next week to make Canada the 18th country he has visited since being sworn in as U.S. president, quite the protocol slippage from that fading, if not forgotten, tradition of Canada being the first foreign presidential pitstop, writes Don Martin in a column for CTVNews.ca.
opinion | Don Martin: Finally and inevitably, Trudeau waved the white flag
After weeks of refusing to look further into foreign election interference, Justin Trudeau surrendered to intense pressure and appointed a 'special rapporteur' to review China's actions. In his exclusive column for CTVNews.ca, Don Martin writes this 'startling change of heart' suggests the PMO is in panic mode and reflects badly on the prime minister's decision making.
opinion | Don Martin: The Trudeau tipping point is within sight
The Trudeau tipping point is within sight. The moment when Prime Minister Justin Trudeau knows he has to quit for the good of the party or the Liberals realize they can't survive re-election with him at the helm is almost upon us, Don Martin writes in an exclusive column for CTVNews.ca.
opinion | Don Martin: Trudeau can't ignore the dangers of Chinese meddling in Canada's elections
Bombshell revelations that suggest Chinese agents actively, fraudulently and successfully manipulated Canada's electoral integrity in the last two federal elections cannot be dismissed with the standard Justin Trudeau nothing-to-see-here shrug, Don Martin writes in his exclusive opinion column for CTVNews.ca.
CTVNews.ca Top Stories
Police identify two of eight migrants pulled from water near Akwesasne, Que.
The Akwesasne Mohawk Police identified two of the eight migrants whose bodies were pulled from the St. Lawrence River earlier this week, but said Saturday they're still searching for a local resident whose boat was found near the victims.

Hungry iguana bites and infects toddler with rare bacterial infection before snatching her cake
A rare infection with tuberculosis-like symptoms was reported in a toddler after an iguana bit her before snatching away a slice of cake on a trip to Costa Rica.
W5 investigates | Priest, neighbours issue plea for help for struggling international students in Cape Breton
Cape Breton University has more than doubled in size by enrolling thousands of international students, and critics say the campus and community weren't ready. Watch the documentary 'Cash Cow' on CTV W5, Saturday at 7 p.m.
Interim RCMP commissioner Duheme 'very concerned' about foreign interference
As questions continue to swirl around the issue of other countries' meddling in Canadian affairs, interim RCMP Commissioner Michael Duheme says he's 'very, very concerned' about foreign interference, and would like to see the national force be able to use intelligence as evidence in its investigations.
Migrant bodies in St. Lawrence 'heartbreaking' but 'predictable,' advocate says
After the bodies of several people were discovered in the St. Lawrence River, who authorities say were likely trying to cross illegally into the U.S., a migrant advocate is questioning why people are fleeing Canada.
April storms bring May norms: Weather Network’s seasonal forecast
The latest seasonal outlook from The Weather Network shows early April will continue to be chilly with flip-flopping temperatures bringing above and below the usual levels of precipitation seen around this time.
At least 26 dead after tornadoes rake U.S. Midwest, South
Storms that dropped possibly dozens of tornadoes killed at least 26 people in small towns and big cities across the South and Midwest, tearing a path through the Arkansas capital, collapsing the roof of a packed concert venue in Illinois, and stunning people throughout the region Saturday with the damage's scope.
A glass of wine or beer per day is fine for your health: new study
A new Canadian study of 4.8 million people says a daily alcoholic drink isn't likely to send anyone to an early grave, nor will it offer any of the health benefits touted by previous studies, even if it is organic red wine.
Federal minimum wage, taxes on alcohol: Here's what's changing in Canada April 1
The federal minimum wage is increasing from $15.55 per hour to $16.65, and taxes are going up on gas and alcohol nationwide starting April 1.