A 94-year-old man was killed when he drove around a road barrier and flashing lights into the path of a Long Island Rail Road train on Monday afternoon, sources say.

The LIRR train was coming from Penn Station and headed east toward Ronkonkoma when it crashed into the truck on the tracks at Deer Park at about 12:45 p.m, said MTA spokesman Aaron Donovan.

The crash caused the truck to go up in flames, said sources.

The train was able to continue on its journey after a delay of about two hours. No one on the train was injured in the crash.

The identity of the elderly driver was not immediately released.