Reporter's partner was questioned about his 'entire life'

The partner of a Guardian journalist who was detained at Heathrow Airport for nine hours under the Terrorism Act said he was questioned about his "entire life" by six agents.

David Miranda, the partner of Glenn Greenwald who wrote a series of stories about the mass surveillance by the US National Security Agency, was detained when changing planes in London as he travelled from Berlin to his home in Brazil.

Arriving at Rio de Janeiro airport, Mr Miranda said: "I remained in a room. There were six different agents coming and going. They asked questions about my entire life, about everything.

"They took my computer, video game, mobile phone, my memory card. Everything."

Mr Miranda's flights were reportedly paid for by the Guardian, the newspaper said in a statement: "David Miranda is not an employee of the Guardian.

"As Glenn Greenwald's partner, he often assists him in his work. We would normally reimburse the expenses of someone aiding a reporter in such circumstances."