DUBAI: Oman’s Civil Aviation Authority said Wednesday that the engine of an Air India Express plane caught fire at Muscat International Airport, prompting an emergency evacuation for passengers onboard. In a statement on its official Twitter account, the authority said some “minor injuries” were sustained by some passengers in a stampede that occurred during the evacuation process. It said evacuation was carried after smoke was detected in the second engine on the plane while it was on the runway at the Muscat airport. The aircraft, Flight IX442, was bound for Delhi airport and was planned for take-off at 11:33 a.m. local time when the incident happened, the civilian authority said.