Stranger stabs 60-year-old man in head with screwdriver on NYC bus over playing drums on his lap

A stranger stabbed another man in the head with a screwdriver on board a Bronx MTA bus Monday afternoon when he flew into a rage because the victim was playing drums on his lap, cops and law enforcement sources said.

The victim, 60, was tapping on his own legs while riding the Bx22 bus at East Fordham Road and Marion Avenue in Fordham Heights around 2:10 p.m., according to authorities and sources.

That ticked off a younger man on board the bus — who suddenly stabbed him in the head without warning, the sources said.

A witness told The Post she was standing in front of a nearby store when she heard some commotion coming from the bus.

“I was standing in the front of the store. I see that the bus stopped and there were people coming out of the bus and people screaming, saying that someone got stabbed,” she said.

“I went inside of the bus and I see that he was bleeding. I came down to the store, grabbed some paper to bring them out. And [people were] just telling me that a guy with a screwdriver cut the guy in the head.”

A pool of blood could be seen on the floor of the bus in the aftermath of the violence.

“He was bleeding a lot. He was bleeding like crazy and he was talking,” the witness said. “People were asking him how old he was because they were calling the ambulance. And he was like conscious of what was happening.”

The injured man was taken to St. Barnabas Hospital in stable condition, police said.

The attacker, believed to be in his 20s, fled the scene and was not immediately caught.