Canadian Prime Minister Justin Trudeau has been accused of "manhandling" a Conservative MP as the House of Commons debated an assisted-dying bill.
Video shows Mr Trudeau walking into a crowd and taking Opposition Whip Gord Brown by his arm in an apparent attempt to steer him to his seat.
New Democratic Party MP Ruth-Ellen Brosseau said she was "elbowed in the chest" in the ensuing scuffle.
Mr Trudeau later apologised to Ms Brosseau of Quebec "unreservedly".
Video here clearly shows PM Trudeau grabbing Oppo Whip and harshly elbowing NDP MP Ruth Ellen Brosseau pic.twitter.com/e8haClmWFq— James Smith (@JsrSmith) May 18, 2016
Mr Trudeau also had a heated verbal exchange with New Democratic Party leader Tom Mulcair.
"I have never seen a display of bully behaviour by a Canadian politician let alone a prime minister as I witnessed just now in the Chamber," said David Sweet, a Conservative MP from Ontario.
Mr Trudeau later said that Mr Brown had been talking too slowly ahead of a vote.
Several lawmakers were concerned about the breakdown in civility in the House of Commons.
"We don't want to become a House of Commons from some country you watch on CNN," said Elizabeth May, a Green Party MP from British Columbia.