ABUJA (Reuters) - Pirates attacked an oil industry supply vessel in Nigerian waters this week and kidnapped three crew, security sources said on Thursday, in the latest attack off the coast of Africa's biggest crude producer.
The captain, chief engineer and second engineer were abducted on Monday when gunmen boarded the Malaysia-flagged Armada Tuah 22 around 50 nautical miles off the coast of the Brass region in the Niger Delta, three security sources said.
One of the sailors kidnapped was Indonesian, the sources said. The vessel is a tugboat contracted to supply an offshore oil platform. Nigeria's navy spokesman gave no comment.
A fishing vessel, Orange 7, was attacked on March 2 in a similar position and one of the crew was killed, sources said.
There has been a surge in piracy attacks off the coast of Africa's most populous nation this year with gangs showing signs of moving further afield and using more violent tactics.
Oil majors Exxon Mobil and Shell said last month that security was a major factor in making Nigeria one of the most expensive oil-producing countries to operate in.
Oil and shipping companies have to hire crisis management teams, pay higher insurance premiums and face the prospect of ransom payments, as well as brace themselves for damage to their reputations.
The prime suspects for most attacks are Nigerian oil gangs, who already carry out industrial-scale theft of crude oil, known as 'bunkering', in the restive onshore Niger Delta swamplands.
(Reporting by Joe Brock and Tife Owolabi; Additional reporting by Jonathan Saul in London; Writing by Joe Brock; Editing by Jason Webb)
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