Pirates have kidnapped 10 crew members from a St Kitts-flagged general cargoship boarded off Nigeria.

The 2,500-dwt Milan (built 1982) came under attack on Wednesday evening, 14 nautical miles (26 km) north-west of Chevron's Pennington Terminal and 10 nautical miles from shore, security consultancies Ambrey and Dryad Global said.

The vessel was in transit from Escravos in Nigeria to Douala, Cameroon.