A teenager has denied responsibility for the Parsons Green terror attack in London, which injured 30 Tube passengers.
Iraqi Ahmed Hassan Mohammed Ali, 18, was charged with attempted murder and using the chemical compound TATP to cause an explosion that was likely to endanger life on 15 September last year.
He allegedly built and placed an improvised explosive device on a train and at or around Parsons Green train station which partially exploded.
Mr Hassan, of Cavendish Road, Sunbury, Surrey, appeared at the Old Bailey before Mr Justice Haddon-Cave, via video link from Belmarsh prison.
He spoke only to enter not guilty pleas to both charges before he was remanded in custody for a two-week trial from 5 March.
A further hearing was also set for 23 February.