Earlier: A motorcyclist has died after a collision with a school bus in the Riverina this afternoon.

At about 3.45pm today, emergency services were called to Tooma Road, about 15km south of Tumbarumba, following reports a motorcycle had collided with a school bus.

Officers from Riverina Police District performed CPR on the rider – a man believed to be aged in his 60s – until paramedics arrived.

However, the man died at the scene.

A number of children, who were passengers on the school bus, were not injured.

The driver of the bus, a 63-year-old woman, was taken to Tumbarumba Hospital for mandatory testing.

Tooma Road has been closed and will remain closed for a number of hours.

Motorists are urged to avoid the area and check www.livetraffic.com for the latest updates.

A report will now be prepared for the Coroner.

NSW Police is continuing investigation into the fatal accident.

Anyone with information about this incident is urged to contact Crime Stoppers on 1800 333 000.

Information is treated in strict confidence.

The public is reminded not to report crime via NSW Police social media pages.