Houston, Jan. 11 (Reporter) Four passengers were injured after a Delta flight had to be evacuated on the tarmac at Hartsfield-Jackson Atlanta International Airport on Friday, airport officials confirmed. The evacuation was caused by an engine problem, officials said. None of the injured is in serious condition, The flight, carrying a total of 201 passengers, was on route from Atlanta to Minneapolis but aborted takeoff on Friday, according to Fox News. Passengers deplaned from the Boeing 757-300 aircraft using emergency slides and were taken to a nearby concourse, said the report. A ground stop at the airport has been extended until 2 p.m. local time...////...