Prime Minister Stephen Harper announced Sunday that byelections in four ridings will take place on November 9.
Two of the ridings are Bloc Quebecois strongholds -- one in Montreal and the other in eastern Quebec.
The other byelections are in British Columbia and Nova Scotia, seats that could be up for grabs.
The Nova Scotia seat is the riding recently held by Independent Bill Casey, who parted with the Tories when he voted against the government in 2007. In B.C., it's the seat formerly held by veteran NDP MP Dawn Black.
With the decision to call the byelections, it appears the Tories expect to survive any non-confidence votes put forward by the Liberals this fall, as they did last week.
The NDP has signalled its intention to support the government, at least until employment insurance reforms are enacted.
With files from The Canadian Press
