This is the shocking moment three people were flung from their motorbikes while trying to overtake.

Helmet camera footage taken on May 1 shows the two motorcycles attempting to speed past a third motorbike as they went over a bump on a road in Chonburi province, eastern Thailand.

Because of the narrow space, the two bikes crashed into each other and the riders were flung to the ground following the painful collision.

A rider who witnessed the collision stopped to check on the victims' condition and help them to their feet.

Three people were reported injured in the crash - a man named Oat who suffered a leg injury, his passenger Mai who bruised her left knee and damaged her tailbone, and another man named Best who bruised his right knee and had to splint his right ankle.