The manhunt for a suspected terrorist who escaped from a London prison by clinging to the underside of a delivery struck has entered its second day.

Daniel Khalife, 21, was dressed in a chef’s uniform when he broke out of HMP Wandsworth just before 8am on Wednesday. The former British Army soldier and computer scientist had worked in the kitchens at the Category B jail.

Counter-terror police put all ports on high alert amid fears Khalife would attempt to flee the country. The 21-year-old is awaiting trial for terror and Official Secrets Act offences.

Sources claim Khalife used makeshift straps to tie himself to the underside of a grocery van which then drove him out of the prison. It was reported there was a delay of around an hour between prison officials noticing he was missing and contacting the police.

The head of the Metropolitan Police Counter Terrorism Command, Commander Dominic Murphy, said there was “no reason to believe Khalife poses a threat to the wider public” but urged people not to approach him and to call 999 if they spot him.