A man and woman from Luton have been arrested on suspected terrorism offences.
A police presence remains at Conway Road, with units from both Bedfordshire and the Metropolitan Police.
A Met spokesman said: “Officers from the Metropolitan Police Counter Terrorism Command have arrested two people, a man and a woman, both aged 35, on suspicion of the preparation of terrorists act contrary to section 5 of Terrorism Act 2006.
“The pair were arrested after being stopped at Luton Airport on Wednesday, 26 October.
“The man remains in custody; the woman has been bailed pending further enquiries.
“The arrests are related to suspected travel to Syria.”
More on this story to follow.