Detectives are questioning a 16-year-old boy and three youths age 17 at separate police stations

Four teenagers have been arrested by detectives investigating the murder of a chef from Neasden who was stabbed to death on his 30th birthday.

Krzysztos Rusek died after he was knifed in the chest in a park in Lillie Road, Fulham, on Tuesday morning.

His killers, who fled with �12, also stabbed his friend in the leg but he was saved by a wallet in his trouser pocket.

Mr Rusek, who comes from Poland, had finished his shift at the Ibis Hotel in Lillie Road at around midnight when he met up with his girlfriend and three male colleagues to celebrate his milestone birthday.

The group were drinking in the green space when they were ambushed by the robbers.

Investigating officers arrested a 16-year-old boy and three youths aged 17 in the early hours of this morning (Friday).

All four are being quizzed by detectives at separate police stations.

Detective Chief Inspector Nick Scola of the Homicide and Serious Crime Command is appealing for information leading to Mr Rusek’s killers.

She said: “This is a tragic waste of a young life, especially as Krzysztos was out celebrating his 30th birthday at the time. What started out as good natured night out with his girlfriend and colleagues has ended horrifically for the sake of a small sum of money.

“I would ask anyone with information about who is responsible for this to contact police, or anyone who was in the area at the time to speak to us.

“Any information may be of significance to the inquiry.”

Anyone with information is asked to call the Incident Room on 020 8721 4005 or call Crimestoppers anonymously on 0800 555 111.