Revealed: Is this the face of the Portsmouth hammer attacker?

The man was seen running across Shearer Road, past the Shearer Arms pub and into Beecham Road in Buckland, Portsmouth, at the time of the attack, which left the teenager with life-threatening injuries. It happened at 7pm on Monday.

Yesterday detectives released CCTV showing a shadowy figure and have now produced the image of a brown-haired bearded man.

They have also revealed that they believe the attack may have been targeted on the house in Shearer Road due to the sex trade and say they have approached charities and support groups to pass on safety information to sex workers.

The teenaged victim is still in hospital in a serious but stable condition.

Police say that they need to speak to the man in the efit as he may be able to assist with their enquiries.

Superintendent Will Schofield, who is in charge of policing in Portsmouth, said: ‘Officers from across the city and other areas of Hampshire and the Isle of Wight are working tirelessly to progress this investigation to secure justice for the victim.

‘We are continuing to treat this as an isolated incident at this time, but I’d like to reassure the local community that we are patrolling the area and these officers are happy to address any concerns that you may have if you speak to them.

‘A number of active lines of enquiry are still being followed, but I’d urge anyone who saw anything suspicious in the area between 4pm and 7.30pm to contact us.’

The man in the e-fit is white, of a small or medium build, about 5ft 5in and has short light-brown hair and a short beard. He wore a brown coat, jeans and light-coloured trainers.

Anyone who was in the area at the time or who recognises the man can call 101 quoting Operation Gather (crime reference number 44160137858), or by clicking here.

People can also call the charity Crimestoppers line on 0800 555 111 where information can be left anonymously.

Minicom users should call 01962 875000.