Nigeria's main militant group said Sunday that it plans to release a British hostage held captive for more than six months, AP reported. The Movement for the Emancipation of the Niger Delta said in an e-mail to The Associated Press that Robin Barry Hughes will be freed «very soon.» The group said it was putting safety measures into place for Hughes' release. The group said no ransom had been paid. Hughes was among 27 oil workers kidnapped by militants when their vessel was hijacked in early September. The militant group said Matthew John Maguire, who was taken in the same incident with Hughes, was not going to be released along with his British compatriot. The other hostages have been released. A spokeswoman for the British High Commission, or embassy, in Nigeria said she was aware of the militants' statement, but had no further information. The spokeswoman, who asked not to be named in keeping with governmental regulations, called for the «immediate and unconditional» release of both U.K. hostages. Hundreds of kidnappings have been reported in the southern Niger Delta in recent years, and the practice appears to be spreading into other parts of Africa's most populous nation and biggest oil producer.