Nigeria: Pirates Hijack Singapore-Owned Oil Tanker
Pirates have hijacked a Singapore-owned oil tanker off the coast of Nigeria, a navy spokesman has told the BBC.
Jerry Omodara said it was not clear where the vessel had been taken to and efforts were being made to track it.
The International Maritime Bureau (IMB) told the AFP news agency that 23 crew members were on board when the tanker was captured and they had locked themselves in a safe room.
Analysts say piracy is increasing in parts of West Africa.
In the first six month of this year, the International Maritime Bureau says it has recorded 17 pirate attacks in Nigerian waters this year - a significant increase on 2011.