British police say a man in his 40s has been arrested over alleged war crimes committed during civil wars in Liberia that began in 1989 and ended in 2007.
The violence left a quarter of a million people dead.
He was arrested during a raid on a home in the city of Newcastle on suspicion of committing offences contrary to the International Criminal Court Act.
The arrest follows a referral early last year to Britain’s Counter Terrorism Command.
The former president of Liberia, Charles Taylor, is serving a 50 year sentence in a British prison after being convicted of several crimes including terrorism, rape and the use of child soldiers during Sierra Leone’s civil war that ended in 2002.