Nigerian militants have freed six foreign oil workers abducted last week from an Italian oil ship off the coast of southern Nigeria.

Italian energy company Eni says the Polish and Indian workers were released Tuesday and are in good health.

Gunmen in speedboats kidnapped the workers last Friday from a ship about 80 kilometers off the Nigerian coast.

The Movement for the Emancipation of the Niger Delta claimed responsibility for the abduction.

The Nigerian rebel group had suspended attacks on Niger Delta oil facilities after President Umaru Yar'Adua took office in May promising to address rebel grievances. But, MEND threatened to resume its campaign last month following Angola's arrest of one of its leaders.

Militant attacks on Nigerian oil facilities since late 2005 have cut the country's oil production by about 20 percent, contributing to rising oil prices.


Some information for this report was provided by AP and Reuters.