BBCMark Carney's Liberal Party is expected to win enough seats in the House of Commons to form a government in Canada. It is not yet clear whether they will be able to secure a majority.
Carney is set to remain prime minister, having only assumed the role in early March following Justin Trudeau's resignation.
Carney's Liberals are leading in 167 seats but are currently short of the 172 needed for a majority.
The Conservatives, led by Pierre Poilievre, are set to remain in opposition as the second-largest party and are leading in 145 seats, with 98% of polls having reported results.
Bloc Québécois - is leading in 23 seats and only runs candidates in the province of Quebec. The New Democratic Party (NDP) is leading in seven seats and the Green Party in one.
Canada has a "first-past-the-post" electoral system.
The candidate who gets the most votes in each electoral district, or riding, wins that seat and become a Member of Parliament (MP).
The Liberals and the Conservatives have dominated the popular vote, with both parties receiving more than 40% each of ballots counted across Canada so far.
This has them on track to win a combined 90% of seats.
The NDP has received just over 6% of the total vote declared so far, but this translates to just 2% of seats in the House of Commons.
Bloc Québécois has just under 7% of the vote and a similar share of seats.
Both the Liberals and the Conservatives have seen a significant rise in their share of the national vote compared with four years ago.
Increased support for Canada's two largest parties has come at the expense of smaller parties, particularly the NDP whose share is down by around 12 percentage points.
The Liberals are on course to win the most seats in the key provinces of Ontario and Quebec, which account for 200 of Canada's 343 electoral districts.
The Conservatives are ahead in Alberta, while there is little to choose between the two main parties in British Columbia.
