Officials in Haiti say gunmen shot and killed a prominent radio journalist in the northern port town of Gonaives earlier this week.

Authorities say two unidentified attackers ambushed Alix Joseph Wednesday, shooting him repeatedly. Joseph was the manager of Radio Provinciale in Gonaives.

Local media stations went off the air Thursday to protest the killing.

The United Nations Stabilization Mission in Haiti condemned the attack and pledged to help authorities investigate and prosecute the killers.

Some information for this report was provided by AP .