A Westbury credit union was robbed Thursday by a man who passed the teller a note saying he had a gun, Nassau police said.

The robber demanded money at the Bethpage Federal Credit Union on Old Country Road and ran off with an undetermined amount of cash, police said.

advertisement | advertise on newsday

It happened about 2:20 p.m. while two customers and six employees were inside, but no injuries were reported, police said.

The suspect, last seen running south on Westbury Drive, wore a patterned knit ski cap, a tan hooded jacket, a beige and black scarf, jeans and white sneakers, police said. He appeared to weigh 170 pounds and was about 6 feet, 3 inches to 6 feet, 5 inches tall, police said.

Detectives said anyone with information could contact Nassau County Crime Stoppers at 800-244-8477.