Suffolk County police are looking for a man who robbed a Bay Shore Laundromat Saturday night.

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Police said the man used a gun to hold up a cashier at the Laundromat at 1204 Sunrise Service Rd. about 8:40 p.m.

The man ran from the Laundromat with an undisclosed amount of cash, police said. Suffolk detectives were investigating Saturday night. Police gave no description of the robber.