The 25-year-old man was arrested at Gatwick Airport at about 04:00 BST
A man has been arrested at Gatwick Airport on suspicion of committing terrorism offences.
The Met Police Counter Terrorism Command arrested a 25-year-old man at about 04:00 BST after he arrived on a flight from Turkey.
He was arrested on suspicion of possessing material likely to be useful to a terrorist.
The Met said the man remained in custody and a search was also under way at an address in north London.