Canadian Prime Minister Justin Trudeau says he’s focused on the work ahead after the ruling Liberals lost in another by-election, raising more questions about his ability to lead the party into the next federal election.

Canada's ruling Liberal Party lost a once-safe seat in a Montreal parliamentary constituency, preliminary results showed on Tuesday, a result likely to put more pressure on Prime Minister Justin Trudeau to quit.

Justin Trudeau’s Liberal party. On September 16th the prime minister’s party lost a by-election in his hometown of Montreal, an area that it had represented almost uninterruptedly since the second world war.