Mohammed Abushamma, 20, from Islington, North London, a science student at University College London, appeared at the Old Bailey. He admitted preparing acts of terrorism between March 17 and April 18. He was given conditional bail and will be sentenced at a date to be fixed.

Abushamma and Qasim Abukar, 20, from Tufnell Park, North London, were arrested at Heathrow as they returned to England.