A person of interest is in custody in Thursday’s shooting on the Upper West Side that sent subway riders scrambling to duck under seats, the NYPD said. Police have not released the name of the person in custody or what their relationship with the victim might be.

According to reports, the suspect was fired before the shooting, confronted his boss and fired at least six shots before fleeing into subway tunnels.

Authorities are investigating a shooting on the Upper West Side where the suspect fled into the transit system, disrupting subway service in the middle of the day. Police responding to a call about a shooting near 68th Street and Columbus around 9:15 a.

The victim was taken to Mount Sinai Morningside Hospital in stable condition, according to police. The suspect ran into the subway at the 72nd Street and Central Park West station. Police said the investigation was continuing. Service was disrupted or rerouted on the A, B, C and D lines, as well as southbound M7 and M11 buses.

Authorities believe a disgruntled former employee at a computer shop near 68th Street and Columbus Avenue shot his ex-boss after he was fired.

NEW YORK - A shooting in New York City's Upper West Side caused major delays on multiple subway lines Thursday. Police said a 47-year-old man was shot in the leg and shoulder around 9:20 a.m. by West 68th Street and Columbus Avenue near Columbus Circle.