A bus driver has been charged over a double fatality in Sydney’s south-west, which police say happened while he was on his phone.

Two men – a driver and his passenger – were killed in the collision between their motor scooter, a bus, and car at Kingsgrove Monday night.

The victims, aged 32 and 44, were stopped, waiting to turn right when it appears they were bumped from behind by the bus, sending them into the path of the other vehicle.

The driver of the car and bus were taken away for mandatory testing.

The 49-year-old bus driver has since been charged with dangerous and negligent driving occasioning death.

Police say he was on his mobile phone and was not wearing a seatbelt.

The man has been refused bail to appear in court today.

It comes on the final day of Operation Safe Return, the state’s January long weekend road safety operation.

Five people lost their lives on New South Wales roads during this time, two more than when compared to the end of the 2018 operation.