Ottawa mayor Jim Watson says he has tested positive for COVID-19 and will remain in isolation. In a tweet Saturday, Watson said he is not experiencing symptoms. This comes just days after a member of the mayor's staff tested positive for COVID-19, causing Watson to go into isolation as a precaution. He cancelled all meetings and events and said he would remain in his home while awaiting test results. Watson was tested early this week, with a negative result on Monday. With Watson's positive test, he says he will remain in isolation for another eight days. COVID-19 cases have been rising dramatically in Ottawa in recent days. Ottawa Public Health reported 251 new cases of COVID-19 on Saturday, 309 on Friday, and 199 on Thursday. Prime Minister Justin Trudeau replied to Watson on Twitter Saturday afternoon. "Sorry to hear the news, Jim - but glad to hear you’re feeling alright. Wishing you a speedy recovery," the prime minister said. Montreal mayor tests positive Montreal mayor Valérie Plante has also tested positive for COVID-19. Plante was tested Friday after a staffer tested positive. She announced her own positive test result on social media Saturday afternoon. "I will continue my activities remotely while I am in isolation," Plante said in French. "The Omicron variant is very contagious. Let us remain cautious and respect the rules of public health."