Bloc Québécois leader Yves-François Blanchet is denying allegations of sexual misconduct, posted on social media Tuesday.
An anonymous person said the alleged events happened in 1999 in a Montreal bar. It is not known who wrote the post or whether they have filed a complaint with police.
CBC News has not verified the allegations or spoken to the person making them.
Blanchet issued a statement denying the allegations, and inviting the person who made them to file a complaint with the authorities.
He said he will continue his professional activities and will not make any other comments.