A 20-year-old man has been arrested in London on suspicion of terrorist offences linked to Syria.
The suspect was held in south-west London on Wednesday as part of a planned raid, the Metropolitan Police said.
He was taken to a police station and the address where he was arrested has been searched.
A police spokesman said: "Officers from the Met's Counter Terrorism Command have this morning, Wednesday April 24, arrested a man on suspicion of terrorism offences.
"As part of the pre-planned operation, officers attended an address in south-west London where they arrested a 20-year-old man under Section 41 of the Terrorism Act 2000.
"He was taken to a south London police station, where he currently remains in police custody. The arrest is Syria-related.
"Officers continue to carry out searches at the address. Inquiries continue."
