A group of special anti-riot police from France are in Martinique to deal with violent protests that erupted last week over the high cost of living.
At least six police officers and one civilian are recovering from gunshot wounds.
Protesters have continued to gather despite the government barring demonstrations in parts of the island.
Videos from local media show crowds of thousands peacefully walking along highways over the weekend banging on drums and waving flags.
The elite riot police, known as the Companies for Republican Security, were banned in the French territory following bloody riots in December 1959.
They had been accused of using disproportionate force against protesters, ending in the deaths of a number of young demonstrators. The force is rarely deployed in French territories in the Caribbean but was called on during riots and strikes in Guadeloupe in 2009.