PORT HARCOURT, Nigeria -- Pirates attacked a ship being used by an oil servicing company in waters off southeastern Nigeria on Saturday, killing two Nigerian naval guards and kidnapping four foreigners, the navy said.
"The incident was somewhere around the Niger Delta, where an oil servicing company was attacked by gunmen. We lost two of our men and four expatriates were abducted, one Malaysian, one Iranian," navy spokesman Commodore Kabir Aliyu said.
He said a Thai and an Indonesian were also taken, but had no immediate further details.
Security in the Delta has improved since militant activity shut down nearly half of Nigeria's oil output around the middle of the last decade, thanks to an amnesty between various militant factions and the government.
But the situation remains volatile and inflamed by organized crime and local political rivalries.
Piracy and kidnapping in the Delta and offshore are common, and West Africa's oil-rich Gulf of Guinea is second only to the waters around Somalia for the risk of pirate attacks, which drives up shipping insurance costs.
They are seen as more of a criminal enterprise making huge sums for armed gangs than as anything political.
Nigerian pirates usually release kidnapped crew members after their cargo has been looted, rather than hold them for ransom.
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