A man wearing a bandanna over his face and a hood on his head robbed a Stony Brook bank Thursday morning, police said.

Detectives are investigating the robbery that happened about 8:45 a.m. in a Chase branch at 2210 Nesconset Hwy., Suffolk County police said.

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The man, described as “between 25 and 35 years old, 5 feet 6 inches to 5 feet 8 inches tall and between 180 and 200 pounds” demanded money from a teller, who complied, police said.

The robber, wearing gloves and a dark-colored hooded sweatshirt with gray pants, ran off, police said.

Anyone with information is urged to call Suffolk Crime Stoppers at 1-800-220-8477.