BREAKING: A recovery mission is under way to clear a rail line after a train derailed east of Toowoomba.

Rail authorities are investigating after the lead engine of an empty coal train ran off the tracks about 7.15am.

An Aurizon spokeswoman said the company was working with Queensland Rail to clear the tracks and determine the cause.

"At approximately 7.15am, a single lead locomotive of an empty coal train derailed on the West Moreton line between Holmes and Spring Bluff," the spokeswoman said.

"There were no injuries and the locomotive remains upright.

"The cause of the incident is being investigated.

"Aurizon is working with the network owner, Queensland Rail, to recommence services as soon as possible."