A man suspected of trying to blow up a US-bound plane on Christmas Day has been formally indicted on six charges including attempted murder and attempted use of a weapon of mass destruction.
Nigerian citizen Umar Farouk Abdulmutallab is due to tell a federal tribunal on Friday whether he will plead guilty or not guilty.
Prosecutors say he tried to detonate explosives sewn inside his underwear as the plane prepared to land in Detroit.
According to police, the 23-year old admitted to having attended terrorist training camps in Yemen.
Yemen’s Deputy Prime Minister has said Abdulmutallab was recruited by al Qaeda in London and radicalised in Yemen by extremist Muslim cleric Anwar al-Awlaki. Unconfirmed reports suggest al-Awlaki was killed in an airstrike on al Qaeda targets just before Christmas.
Since the attack, serious questions have been asked of America’s intelligence community and stricter security measures have been introduced at US airports.