Two prisoners who escaped from HMP Pentonville, north London, arranged pillows to look like bodies in their beds.
Their escape was discovered when officers carrying out checks found two pillows made to look like bodies in the prisoners' beds on Monday. It is understood the inmates, James Anthony Whitlock, 31, and Matthew Baker, 28, then used diamond-tipped cutting equipment to break through cell bars before they scaled the perimeter wall.
Whitlock was on was on remand having been charged with conspiracy to burgle, namely 19 offences of theft from ATMs at various locations in the south-east of England between December 2015 and August 2016, Met Police said.
Baker was found guilty of attempted murder two weeks ago having stabbed a man in Dagenham following a dispute.
He had been remanded for sentencing on 11 November.
The men were not required for prison work, which is why they were not reported missing until 12:00pm.
He added staff were expected to conduct a visual check on prisoners at about 07:00am.
It is understood pillows in their cells were made to look like bodies, but it's not clear if they had other objects or coverings on them.