A motorcyclist was swept away by a flash flood gushing through a mountain road in Thailand.

The driver was part of a motocross team travelling along a rural road in Chaiyaphum province in the country's northeastern region amid heavy rain on September 17.

The crew braved the downpour and maneuvered their bikes through the slippery dirt path as they were battered by the monsoon storm.

However, one of the bikers was swept off his two-wheeler by a violent surge of water.

Dramatic footage shows how the team rushed to rescue the driver after he was knocked off his ride by the churning torrent. He was found drenched but uninjured, holding onto a tree to steady himself.

The men had to wait for the flood to subside before resuming their journey.

Thailand and neighbouring countries in Southeast Asia are in their annual monsoon rainy season which sees soaring temperatures followed by powerful rain storms in the afternoon leading to widespread flash floods.