Three teenage girls crossing a bridge in central Florida were killed by a freight train as they desperately tried to get out of its way and their helpless friend on the other side could only watch, police said Sunday. The girls and the fourth teenager, a boy, were hanging out in Melbourne's downtown area _ known for its shops and nightclubs _ when they decided to cross the trestle around 6:30 p.m. Saturday, Lt. Curtis Barger said, according to AP. «The male made it across the tracks, turned around, heard the train, saw it and yelled for them to run,» Barger said. «He then told them to jump.» The girls did not have enough time. Barger said all the teens were from the area, but their identities have not been released. That likely won't happen until Monday, after officials can compare dental records, he said.