The Long Island Rail Road is putting the cork in weekend late-night drinking.
The railroad is banning alcohol on overnight weekend trains out of Penn Station.
Railroad officials tell Newsday that the effort is aimed at curbing unruly activity by drunken passengers.
The pilot program begins May 14. Trains operating on Friday and Saturday nights between midnight and 5 a.m. will be affected.
The railroad says signs will be posted throughout Penn Station notifying customers of the ban.
MTA police officers will be stationed at platforms to inform riders to get rid of their drinks.
Officials cite a number of recent assaults on train crew members as one reason for the ban.
Union officials back the plan.