Officials in Nigeria say militants have kidnapped seven workers from a ship in the volatile Delta region.
Security officials in the region say six of the hostages are from the Philippines. The other is Nigerian. Little additional information is known about the incident earlier Saturday.
Kidnappings and attacks on oil facilities are common in the Niger Delta. Militant groups there are demanding that the government give a greater share of oil revenue to impoverished local communities.
Earlier this week, militants released five Chinese workers and an Italian. Several other foreign oil workers are still being held.
The attacks have cut Nigeria's oil output by some 20 percent over the last year.
Some information for this report provided by AFP, AP and Reuters.