The plane, with 178 passengers, caught fire on the tarmac after making an emergency landing at Denver International Airport, forcing many passengers to evacuate by climbing out onto a wing and with emergency slides. Airport officials said 12 passengers were taken to a hospital with minor injuries.

Passengers’ luggage was safely removed from the plane, and they flew to Texas around 1 a.m. local time. The FAA has said that the cause of the engine vibrating and the cause of the fire remain under investigation.