Four people have been arrested in connection with the murder of a church-going schoolboy, Scotland Yard said today.

Michael Dosunmu, 15, was shot dead by two gunmen who broke into his home in Peckham, south London, in the early hours of Tuesday.

The Metropolitan Police said today that the four were arrested yesterday at around 7pm, and were being held in custody at south London police stations.

The teenager's father, Rasak, admitted last night he was yet to tell his wife, who is travelling from Nigeria, the truth about the tragedy.

"All I've told her is that Michael is ill, so she is rushing back to see him," he told the London Evening Standard.

Michael had celebrated his 15th birthday at home in Diamond Street just two days before the killing.

He was found by his older sister who gave him first aid, but he died less than an hour later at King's College Hospital.

Mr Dosunmu, 50, described his son as a "kind and easy-going boy" who was "always on his computer".

"He never hung around on the street. He was serious about his studies and we had a maths and science tutor come home to teach him twice a week," he told the paper.

Home Secretary John Reid today held talks with community leaders and police to discuss ways of tackling gun, knife and gang crime following a spate of killings in the area in recent days.

Javarie Crighton, 21, was stabbed on the adjacent road, Southampton Way, on Saturday lunchtime. Orando Madden, 23, has appeared in court charged with his murder.

In the early hours of Sunday morning, a man in his 40s was shot dead and another injured at a flat less than a mile away, in Flamborough House, Clayton Road.

Another teenage boy, 16-year-old James Andre Smarrt-Ford was gunned down and killed at Streatham Ice Rink in south London on Saturday night.

Mr Reid said tougher sentences and more police could help fight violent gang-related crime but local organisations could also play their part.

"Although firearms offences fell last year, including a 16% decrease in Trident gun crime in the Metropolitan Police area, I am in no doubt as to the scale of the problem.

"Gangs can terrorise communities and destroy lives. It is important that we play our part by introducing tougher sentences and increasing police numbers but it is individuals and organisations based at the front line that can really make a difference."