Another boy charged over NSW servo attack

A teenager allegedly involved in a vicious drive-by attack outside a service station in the NSW Hunter region has been charged after turning himself in to police.

Police say the 17-year-old boy, along with two other young men, aged 17 and 19, and a 17-year-old girl assaulted two men who were walking past the station in Belmont early on Sunday morning.

One of the injured men, who were aged 20 and 18, was taken to John Hunter Hospital for serious but non-life threatening injuries.

Police said all four alleged offenders have now been arrested and charged with assault offences.