(CNN)A 21-year-old woman who had just arrived at Heathrow Airport in London on a flight from Turkey was arrested Thursday on suspicion of preparation of acts of terrorism, London Metropolitan Police said.
Woman, 21, arrested at Heathrow on suspicion of terror-related offense
The traveler is from north London and the arrest is Syria-related, police said.
Police also searched two addresses in north London on Thursday.
CNN called Scotland Yard for comment but police declined to give further details.