[Updated 11.45am, 20/01/14]
Police have named the man killed in a single vehicle crash at Casino early on Saturday morning as Peter Owen, 49, of Casino.
Mr Owen was believed to have suffered a heart attack before the sedan he was driving ran off the road about 6.20am and hit a tree. He was declared dead at the scene.
A 42-year-old male passenger in the sedan was trapped and had to be freed by rescue personnel.
He was treated at the scene by NSW Ambulance paramedics and taken to Lismore Base Hospital with minor injuries.
Police will prepare a report for the Coroner on the accident which happened around 6.20am.
A crime scene has been established on Centre Street with police conducting investigations into the crash.
Motorists are advised there are diversions in place on Centre Street with northbound traffic being diverted into North Street while southbound traffic is being diverted into Pratt Street.