A man was arrested in northern England in connection with suicide bomb attacks on US-led coalition forces in Iraq, police said.
About 30 officers raided a house in the Moss Side area of Manchester at 5:00 am (0400 GMT), where they detained the man.
Greater Manchester Police said the arrest was not connected to any threat in Britain but to "an incident overseas" involving attacks in Iraq.
"Since the beginning of the year, there have been a series of suicide bombings against coalition forces in Iraq," a spokesman said. "It appears that one of the suicide bombers may have travelled from the UK where he had been living."
