( dpa ) - Niger Delta militants attacked an oil service vessel on Bonny River in the Niger Delta on Monday, Rivers State Commissioner of Police Felix Ogbaudu said.
He told Deutsche Presse-Agentur dpa that the vessel was heading toward the Mystras oil platform used by Italian oil giant Agip offshore Bonny Island when the militants struck.
"They fired at the vessel, making it abandon the trip. Details are still sketchy as we do not know yet whether there were casualties or not," Ogbaudu said.
He said none of the myriad group of militants had claimed responsibility for the attack.
Last week, a petroleum products vessel belonging to Inter-oil Nigeria was attacked on the Bonny River while on its way to Gabon.
The captain of the vessel, an Indonesian and three Nigerians were wounded in the attack.
Meanwhile, ethnic Ijaw leaders met with President Umaru Yar'Adua Monday in Abuja demanding that he declared a state of emergency in the Niger Delta.
Their spokesman, Edwin Clark, also asked the Nigerian president to set up a commission of inquiry into the crises in Rivers State, where he said militant groups were sponsored and financed by political office holders and other politicians.