The strike shutting down North America’s largest commuter rail system will continue into a third day. Lengthy negotiations failed to reach a deal in time to save Monday morning's commute on the Long Island Rail Road in New York. The talks that began Sunday afternoon went past 1 a.m. Monday before negotiators called it a night, agreeing to resume discussions six hours later. The failure to reach a deal means the strike will mar the start of the work week for about a quarter million commuters. The talks involved five unions representing about half the railroad's workforce and the Metropolitan Transportation Authority, which runs the railroad. The strike started Saturday. The two sides have negotiated for years over a new contract.