Man held in IED manufacturing probe
A man has been arrested on suspicion of being concerned in the manufacture of improvised explosive devices in Iraq in 2007, Scotland Yard said.
The 37-year-old was arrested at his home in north west London by the Metropolitan Police's Counter Terrorism Command and officers continue to search the property.
He remains in custody at a south London police station.
Iraq was pushed to the brink of civil war in 2006 and 2007 following a surge in sectarian violence, despite the deployment of thousands of extra US troops.
It followed the US-led invasion, supported by the UK, that toppled dictator Saddam Hussein in December 2006.
Both countries began withdrawing their military forces in 2009, with the last to return home in 2011.