A £10,000 reward has been offered to catch the killers of a 19-year-old man shot dead in Greater Manchester as he lay on the ground begging for mercy.

Nureni Mumin Sheikh was attending an engagement party in Moss Side on January 10 when was shot twice outside the Zaku Cafe in Claremont Road.

"There does not appear to have been any motive for this killing," said Ch Insp John Dineen as he announced the reward on Wednesday.

He added: "I believe that there are still many people in the Moss Side area who have information about this cold-blooded murder, but who haven't come forward.

"I am asking those people who do know who killed Nureni to look at themselves and ask what they can do to rid themselves of the shame of knowing and doing nothing."

Mr Sheikh,, from Manor Park, London, was standing on the pavement with his uncle and another relative when two men wearing balaclavas approached them.

One pointed a gun at Mr Sheikh, grabbed him and all three fell to the ground in a tussle.

As he lay on the ground he pleaded to know why this was happening to him and why he was being targeted.

Mr Sheikh, who was originally from Somalia, moved to England with his family 10 years ago.

A short time after they arrived in the UK, his father Mumin was shot and killed during the civil unrest in Somalia.