A woman in a wheelchair was randomly slashed in the face while waiting to catch a city bus in East Harlem, authorities said.

Surveillance video shows the suspect exiting the subway station at 125th Street and Lexington Avenue before walking up to the 42-year old quadriplegic and slicing her face around 3:20 a.m.

The coward then ran off, leaving the woman bleeding profusely.

The injured woman wheeled herself down East 125th Street and over the Willis Avenue Bridge to The Bronx before seeking help at a local firehouse.

The woman was rushed to Lincoln Hospital where she received nearly 50 stitches to close the wound, officials said.

The suspect is described as a man in his late teens or early 20s and was wearing a black V-neck shirt, black basketball shorts and sneakers.