A second man has been arrested after a man was shot in the head and killed.

Police arrested a second man on suspicion of the murder of Abdullahi Mahmoud, 29, from Enfield, who was shot in the head at Hertford Road on March 19 at around 4.45pm.

The suspect, 22, was arrested on Saturday (March 21) but has since been released on bail to a date in mid-April.

Officers and London Ambulance Service found Abdullahi with a head injury after the shooting and he died in hospital shortly after, with a post mortem to be held in due course.

Another man, 21, was arrested on March 18 and was also released on bail until mid-April.

Detective chief inspector Pete Wallis, of the Met’s Specialist Crime Command, is leading the investigation.

He said: “Our thoughts are with Abdullahi’s family and they will continue to receive specialist support as the investigation progresses.

“This was a violent attack in the middle of the street and my team are working hard to establish who is responsible. We are exploring the possibility there was more than one assailant and would specifically like to appeal to those who may have been shopping in area at this time to make contact with police.

“One line of enquiry is that that this is gang related, however enquiries are in the very early stages and we retain an open mind as we gather evidence and piece together the last moments of Abdullahi’s life.

“If you don’t wish to speak to police, please make the call to Crimestoppers anonymously – the important thing is that you tell us what you know.”

North Area Borough Commander Treena Fleming added: “This is a horrific incident and our first thoughts are with the victim’s family, who have lost a loved one in tragic circumstances.

“I want to reassure local residents they can expect to see an increased police presence in the area. Please, if you have information that you want to share, do approach them and tell them what you know.”

Anyone who witnessed the incident is asked to call police on 101 quoting CAD 5035/19Mar, Tweet @MetCC or call Crimestoppers anonymously on 0800 555 111.