The BBC are reporting that all 8 foreign workers who were abducted on Friday have now been released:
http://news.bbc.co.uk/2/hi/africa/5045520.stm
The article says nothing about the Nigerian workers who were also taken captive, but Ihope that they have also been released unharmed.
There have been a number of news releases as there was some confusion earlier as to whether just the 2 Britons had been released, but the BBC one is the same as the latest Washington Post news.
It seems that MEND have denied any involvement this time, saying that the kidnappings were purely a money making scheme.