(Reuters) - An Amtrak passenger train collided with a CSX Corp (CSX.O) freight train near South Carolina’s state capital on Sunday, killing at least two people on board and injuring at least 70 in the railroad’s third fatal crash in as many months. Amtrak Train 91 was carrying 139 passengers and eight crew members to Miami from New York when it hit the freight train at about 2:35 a.m. local time (0735 GMT) and derailed, injuring at least half its passengers, the railroad said in a statement.