Pirates have abducted 11 seafarers from a Peter Dohle containership off Nigeria.
This is according to Poland's Radio RMF FM, which said eight Poles, two Filipinos and a Ukrainian were kidnapped.
Poland's ministry of foreign affairs has been in contact with the shipowner.
Dohle's Isle of Man manager Midocean said in a statement that the ship was attacked and boarded while en-route to the port of Onne.
"We regret to confirm that upon leaving the ship the attackers took eleven of the ship’s crew ashore against their will," it added.
"The other nine seafarers remain onboard and are safe and unhurt."
The vessel has proceeded to safe waters.
Working to release crew
"All relevant authorities were informed immediately after the attack. Our priority is securing the earliest release of the eleven crew who have been taken and we are working closely with our partners and the local authorities to achieve that," the statement said.
"The families of those crewmembers taken are being kept informed of the situation."
Midocean will not be releasing any further details at this stage in order not to jeopardise the crew.
The attack took place in the early hours of Saturday, 50 miles off the coast.
The gunmen used two motor boats to reach the vessel.
The crew had time to send a distress signal and no injuries were reported.
AIS data shows the vessel stopped off the coast on Monday.
Twelve seafarers from a Massoel Shipping bulker were released over the weekend by Nigerian pirates.