The White House says the British government gave the United States advance notice that London police intended to detain the partner of an American journalist who has written articles based on leaks from former National Security Agency contractor Edward Snowden.
But White House spokesman Josh Earnest says the United States did not request the detention and was not involved in the decision.
London police detained David Miranda, the partner of reporter Glenn Greenwald, under anti-terror legislation at the London airport on Sunday. He was being held and has been questioned for nearly nine hours. Miranda said he was not threatened while detained but said personal objects were taken from him, including his computer, cell phone and digital memory sticks.