French prosecutors say five people have been arrested in connection with an Air France union meeting brawl that left two executives shirtless.

During a meeting a week ago about fiercely contested job cuts at the money-losing airline, union activists assaulted the managers, including the airline's head of human resources, ripping their shirts from their bodies and prompting them to flee over a fence.

The Bobigny prosecutor's office confirmed that five people were arrested early Monday, saying the allegations of aggravated assault carried a maximum five years in prison.

Air France blames the violence on "isolated individuals" and negotiations over the cuts have resumed. It has already cut costs and jobs in recent years and proposes a sweeping plan that involves 2,900 more job losses and longer hours.