A customs official was shot dead by an armed man while two police officers were injured during a raid in the city of Toulon in the south of France Monday, local news reports said. A tweet by French news network iTele said that the customs official was part of the raid, which was related to arms trafficking.

According to a report by Le Parisien, a local newspaper, the man was armed with an M16 rifle and opened fire several times at the officers who were trying to arrest him. The man who is suspected to have fired the shots was later arrested by security forces while another suspect was at large, the report said.

It was not clear if the gunman was linked to the Paris attacks on Nov. 13, which killed 130 people. Toulon, a town on the French Riviera about 520 miles south of Paris, is also home to a French military base.