Rene Graham, who was gunned down in Emslie Horniman Pleasance Park in Ladbroke Grove

THE prime minister has urged the public to come forward and help police after a 15-year-old boy was shot dead at a summer fun day.

Sir Keir Starmer said one of the new governments missions was to “drive down this sort of violence in our communities”.

He was speaking at Prime Minister’s Questions this week after Rene Graham was gunned down in Emslie Horniman Pleasance Park in Ladbroke Grove on Sunday evening.

Hundreds of people were at the Park Lime event, an annual community get-together organised by the Caribbean Music Association in what is known as the “Teletubbies Park”.

A murder investigation has been launched but detectives are yet to charge anyone after the killing despite three arrests being made.

Mr Starmer told the Commons it was an “awful case”, adding: “The loss of a teenage boy in west London is shocking. Our thoughts – I am sure I speak for the whole house – are with his family and friends. I urge the public to support the Met with any information that can help with their investigation that is ongoing. Making streets safer is one of the five central missions of this government. This is a shocking reminder of just how important this mission is. We have an ambition to drive down this sort of violence in our communities. We do not want interventions like this. It is shocking to hear of this particular incident.”

He had been asked about the murder by new Labour MP for North Kensington, Joe Powell, who also urged people to come forward and help the police.

“The community is feeling anxious, frightened and shocked,” he told the Commons on Wednesday.

The Met told Extra yesterday (Thursday) there were no updates after announcing earlier in the week that three people had been arrested.

Detective Chief Superintendent Christina Jessah, who is in charge of policing for Kensington and Chelsea, said: “A young boy has tragically lost his life and our thoughts remain with his family and friends at this devastating time. We will continue to provide them with specialist support.

“I understand that the public, especially those who live and work in the area, will be shocked and concerned by this incident. All of us at the Met share that concern and we are using all of the resources at our disposal to identify those involved.

“This investigation is at an early stage and we are keeping an open mind as to the motive. It will take us some time to establish the facts and this will be our priority in the coming days.

“We are keen to speak to other witnesses who were in the area at the time of the shooting. There was an event taking place and it’s possible people may have been taking photos or filming. Please check to see if you have captured anything that may help detectives.

“Residents can expect to see a significant police presence in this area. Officers are there to provide reassurance and support – please speak to them if you have concerns.

“Tragic incidents like this remind us when it is so important that we continue our unrelenting focus on suppressing violence and gun crime, and catching the offenders who endanger our communities.”

The park is named after Emslie John Horniman, a British anthropologist and Liberal Party politician.