More disturbing news for NYC commuters. After a deadly weekend, new information confirms yet another concern for millions of straphangers.

“The two subway riders fatally stabbed along the downtown 2 line were attacked during a rowdy ‘train party’ — a fast-growing epidemic where youths, packing booze, smokes and sometimes weapons, take over a subway car in “wilding” episodes long after the bars have closed.

“It’s like something from the bad old days of New York,” a law-enforcement source told The NYPost.

Yesterday, 19-year-old Brenddy Garcia confessed to the stabbings but claims he was fending off a group of 7-8 drunken men who hit him in the head with a beer bottle.

Police have arrested three men in connection with the incident. Garcia of Brownsville, Brooklyn was also charged with criminal possession of a weapon, Gothamist reported.

With eliminating station booths and NYPD officers, due to recent spike in underground violence, security has been beefed up during high-crime period.

Two men stabbed to death, and a third man badly injured on the 2 train at 5 am Monday, according to NY1.

Police say Darnell Morel, 24, and Ricardo Williams, 24, were killed following an altercation with another group.

One of the men had a bag of trash and tossed it out the door as the train stopped at 14th Street. The trash struck one of four men boarding the train at that stop — and he pulled a knife, according to an eyewitness. Police stopped the train at the Houston Street station.

No weapon was recovered.