Three violent subway attacks

A man randomly slugged two straphangers on Bronx trains last week — days before a female tased a man during a clash over a subway seat, authorities said.

A 38-year-woman was leaving the Brook Avenue 6 train station in Mott Haven on March 19 when a stranger suddenly punched her in the head, cops said. The male attacker fled, authorities said.

A day later, authorities believe the same suspect randomly slapped a 24-year-old woman riding a 6 train as it approached the Hunts Point Avenue station.

The NYPD is also looking for a female suspect who allegedly tased a 59-year-old man in the face on a Queens-bound A train approaching the Utica Avenue station in Crown Heights.