The US has reported its first casualty of the US peacekeeping mission in Haiti.

A US Marine was shot and wounded Sunday in the Haitian capital Port-au-Prince but the wound is not life-threatening, reports fromthe capital said Monday.

The Marine was patrolling the Bel Air neighborhood not far fromthe National Palace at around 9:35 p.m. local time (0235 GMT Monday) when he was shot in the left arm. He was taken to Miami for medical treatment.

The first batch of US troops arrived just hours after Haiti's former President Jean-Bertrand Aristide fled the country on Feb. 29, but the capital has since been rocked by a number of violent incidents.

US Marines have been involved in several gunbattles in Port-au-Prince since their arrival, killing six Haitians.

On Friday, US Marines said they killed two gunmen in an overnight firefight after a shoot-out erupted between police and protesters in the Bel Air neighborhood, a stronghold of hard-core Aristide supporters.