Canadian Prime Minister Justin Trudeau, whose party looks set to lose power early next year, is under increasing pressure from his own legislators to step down and let someone else take over.

The ruling Liberals face obliteration in the next election after more than nine years in office amid voter fatigue as well as anger over high prices and a housing crisis.

The Canadian Broadcasting Corp said more than 50 Liberal members of parliament from Ontario - the most populous of the 10 provinces and the party's main stronghold - held a call on Saturday and agreed Trudeau had to step down.