Police have been granted warrants of further detention for two people arrested at Heathrow airport over allegations of terrorism and the kidnapping of a British photographer in Syria.
A 26-year-old man and woman were arrested on Tuesday at the airport and were taken to a central London police station where they remain.
Two Britons arrested yesterday evening at Heathrow Airport and being held over terrorism allegations will be questioned about the kidnapping of a British photographer in Syria.
The man and woman arrested, both twenty-six, were held last night after arriving in the UK from Egypt.
Scotland Yard confirmed that one line of inquiry was whether the pair were involved in the abduction of a British photographer and his Dutch colleague.
Photographer John Cantlie, who had worked for the Sunday Times, and Dutchman Jeroen Oerlemans were both captured for a week. Mr Cantlie said that one of his captors had claimed to be an NHS doctor.
The two people arrested at Heathrow Airport on suspicion of committing terror offences flew into the UK from Egypt, Scotland Yard said.
Police did not make clear whether the suspects were believed to be returning from or heading to Syria.
The pair, who have not been named, were arrested of the "commission, preparation or instigation of acts of terrorism".
A man and woman have been arrested at Heathrow Airport on suspicion of committing terrorism offences after arriving on a flight into the airport.
The arrests are part of an investigation into travel to Syria in support of alleged terrorist activity.
Officers are searching two addresses in east London under the Terrorism Act in connection with their inquiries.
Two people have been arrested at Heathrow Airport on suspicion of committing terrorism offences.
A man and a woman were held at 8.30pm yesterday after arriving on a flight into the airport.
The pair, both aged 26, were arrested by officers from the Metropolitan Police's Counter Terrorism Command on suspicion of the commission, preparation or instigation of acts of terrorism.
They were taken to a central London police station where they remain in custody.