Quad bike rider killed in NSW Riverina

Police are looking for a man in the NSW Riverina who allegedly ran from the scene of a collision between two quad bikes that killed the other rider.

Police say a 25-year-old man died in Griffith Hospital following the collision at Willbriggie about 4pm on Saturday.

Police are asking for assistance in identifying the other rider.

They describe him as being between 170 and 175cm tall, of thin build, Caucasian, with a tanned complexion, brown hair and unshaven facial hair.