 "Indigo, Indigo bus, IndiGo bus fire")
An Indigo bus used for transporting passengers on Friday caught fire at the Chennai airport but no one was aboard barring the driver.
The fire was immediately extinguished.
The incident happened this morning near Bay No.28 at the domestic terminal, when the bus was returning after dropping off passengers boarding one of its flights, airport officials said.
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Suddenly there was a spark in the engine resulting in a fire which was immediately put out by fire service personnel, they said.
Nobody was injured in the incident.
