Two people were fatally struck by trains in the city Friday morning — a woman at Penn Station and a man in Queens, cops said.

More recently, a witness reported to cops that a woman jumped in front of an oncoming northbound 1 train at 34th Street–Penn Station around 9:20 a.m., cops said.

The 40-year-old woman was pronounced dead on scene, police said.

The MTA initially tweeted that northbound ‌1‌, ‌2‌ and ‌3‌ trains were rerouted and delayed following the incident. Later, the agency said regular service was beginning to resume, but to expect longer delays in both directions.

“It was chaos,” a maintenance worker said. “People didn’t know what to do, which train to [transfer to] …There were about seven [or] eight station managers out here trying to help.”

“You see people walking by, you never know what is going on with them,” he said, shaking his head. “This [corona]virus is affecting everybody.”

About six hours earlier, an adult man who had previously been on the tracks was struck by an oncoming M or R train at the Woodhaven Boulevard station, cops said.

It was unclear why he was on the tracks, but no criminality was suspected, according to police.

He too was pronounced dead on scene.