Canada's Liberal Party has decisively won parliamentary elections, ending nine years of Conservative rule, partial results show, according to BBC News.

The Liberals, led by Justin Trudeau, are leading in 185 electoral districts.

The son of late Prime Minister Pierre Trudeau is now poised to form a majority government, Canada's CBC and CTV networks predict. Incumbent Conservative PM Stephen Harper - whose party is leading in 103 districts - accepted defeat.

His party said Harper would resign as leader of the Conservatives.

Addressing his jubilant supporters shortly afterwards, Trudeau said that Canadians "sent a clear message tonight - it's time for a change".

Meanwhile, the left-leaning New Democratic Party (NDP) is on course to win 41 seats, less than half the number they held in the outgoing parliament.

To form a majority government, a party needs 170 seats in the 338-member parliament.