Union leader Ken Pereira will not run in the next election for Maxime Bernier's People's Party of Canada (PPC).

Pereira announced on Twitter that a "terrible family tragedy" required him to withdraw his candidacy a few days before the start of the election campaign. He apologized to the PPC and the volunteers who campaigned for him.

He was set to run in the riding of Portneuf-Jacques-Cartier, in the Quebec City area.

In 2013, he gained fame in the province with revelations to the Charbonneau Commission about corruption in the FTQ-Construction union and the people surrounding its former director Jocelyn Dupuis and president Jean Lavallee.

Prime Minister Justin Trudeau has until September 15 to kick off the federal election campaign.