Nigerian police say six foreign sailors kidnapped by armed pirates have been released unhurt.
Police said that no ransom was paid for their release.
The sailors, including three Ukrainian and two Russian nationals, were taken when gunmen stormed their oil servicing vessel on February 17.
The attack took place about 65 kilometers off the coast of oil-producing Bayelsa state.
In the days after the kidnapping, police announced the gunmen had demanded $1.3 million for their release.
But police said the kidnappers abandoned the hostages on February 25 while Nigerian security forces were in pursuit.
The kidnapping of foreign oil workers is on the rise in Nigeria’s oil-rich south.
The hostages are often released following a ransom payment.
There have been at least five such attacks in the area this month.