Police are investigating after someone hung a large banner over Conservative leadership candidate Kellie Leitch’s constituency office, calling for her to resign and listing the names of the Quebec City mosque shooting victims.

A photo circulating on Twitter shows a large banner hanging from the roof of Leitch’s constituency office in Collingwood, Ont. on Wednesday morning, with the words “Hate puts us all at risk” written on top.

The names of the six victims of Sunday night’s shooting attack on a Quebec City mosque were listed in red, followed by “#NotMyMP” and “Resign Kellie Leitch” at the bottom of the banner.

In a news release, the Ontario Provincial Police said that someone gained access to the rooftop of Leitch’s office and hung the banner some time overnight Tuesday.

“The banner has since been removed and no damage was caused to the property,” the OPP said.

“The investigation is ongoing at this time and further information will only be provided where the investigation permits.”                

Leitch has been criticized for her immigration proposals, which include screening all potential newcomers for “Canadian values.”

Leitch told CTV Barrie that she first found out about the banner at her office around 7:30 a.m. Wednesday, when several constituents texted her about it.

“We have freedom of speech in this country and I embrace that,” she said. “These individuals obviously have a difference of opinion than myself.”

Leitch said the attempt to associate her with the violent attack in Quebec is “completely unfounded.”

“This was truly a tragedy…These individuals were murdered while praying,” she said.

“And that was not only an attack on them, but I think an attack on the fabric of who we are as Canadians and individuals that embrace freedom and tolerance. I have condemned this act. This is an act of terrorism on Canadian soil and completely unacceptable.”

Leitch said she has been advocating for a “common sense” immigration policy and that "two thirds of Canadians" agree with her proposal to screen immigrants for "Canadian values."

Throughout her leadership campaign, Leitch has been citing the Forum Research poll conducted in early September 2016, which sampled 1,370 randomly selected Canadians 18 years and older.