Service was restored on the E, F, M and R trains after a man jumped in front of an F train at the Forest Hills-71st Avenue station Wednesday morning, officials said.

Witnesses told police the man jumped at about 10:20 a.m., cops said. He was taken to Jamaica Hospital Medical Center with serious injuries, the FNDY said.

The MTA said regular service resumed with delays on the E, F, M and R lines at about 11:45 a.m.

Earlier Wednesday, a man was pushed onto the tracks at the 170th Street B and D train station in the Bronx, police said. He was taken to an area hospital and is expected to be OK.