Woman arrested on suspected terrorism offences as she lands at Heathrow Airport | 29 June 2017 | A 21-year-old woman has been detained at Heathrow Airport on suspicion of preparing acts of terrorism, police said. The woman, from north London, was arrested as she left a flight from Istanbul, Turkey, at just after 9pm on Thursday. Officers said the arrest was Syria-related and the woman was being held at a south London police station.