A brute repeatedly smashed a woman over the head with a scooter in a random attack in Downtown Brooklyn, police said Thursday.

The suspect, armed with the silver, two-wheeled scooter, approached the 44-year-old woman near Bridge Street and Fulton Street at about 7 p.m. on Saturday and started beating her over the head with it, cops said.

The woman was critically injured in the attack and rushed to a nearby hospital after the beating, authorities said.

The suspect ran off headed east on Fulton Street after the beating, police said.

The attacker, who remains at large, was last seen wearing black gloves, a black jacket and brown pants, cops said.