Four people have been arrested in connection with the murder of Keighley teenager Yasser Hussain Nazir.

Yasser, 16, of Chatsworth Street, was shot in the head at close range at a Shell petrol station, in Haworth Road, Chellow Heights, Bradford, on September 5.

A 31-year-old man from Derby has been arrested on suspicion of murder and has been released on bail pending further inquiries.

A 21-year-old Skipton man has been charged with witness interference in relation to the murder investigation and bailed to appear at Skipton Magistrates on October 24.

And two men, aged 27 and 29, from Heaton, Bradford, were arrested on Wednesday by murder squad detectives.

They were released on police bail pending further inquiries.