OTTAWA -- The main federal party leaders are in Central Canada as the election campaign enters its fourth week.

Liberal Leader Justin Trudeau starts the day on home turf, making an announcement in Montreal.

Later in the day, he's due to travel to Ottawa, where he'll participate in a virtual town hall with volunteers.

Conservative Leader Erin O'Toole is spending a second day at his Ottawa home base, a ballroom in the Westin Hotel.

He's scheduled to make an announcement in the morning, and hold a virtual telephone town hall with Ontario residents in the evening.

NDP Leader Jagmeet Singh, meanwhile, is campaigning in Toronto, where he's set to make an announcement on climate action this morning.

This report by The Canadian Press was first published Sept. 7, 2021.