LYNBROOK, N.Y. (CBSNewYork) — A man accused of robbing at least a dozen businesses on Long Island may have struck again Saturday night.

The crime spree began in February, when the knife-wielding man robbed a Carvel in Copiague.

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Shortly after 9 p.m. Saturday, the man held up at TCBY in Lynbrook, police say.

“The one girl that was here, she said she was fine, but there was another girl who doesn’t usually work and she was sort of shook,” one TCBY employee told WCBS 880’s Sophia Hall.

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The suspect was described as a man between 5 feet 5 and 7 inches tall with an average build, wearing a dark hat with a brim, dark jacket, blue jeans, dark scarf covering his face and gloves. 

Two hours before, the man tried to rob a Subway in North Merrick, but an employee there pushed a panic button and he ran away empty handed, police say.

The suspect in this incident was described as a man about 5 feet 8 inches tall with an average build, wearing a dark hat, dark jacket, blue jeans, white sneakers, gray scarf covering his face and gray gloves.

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Detectives ask anyone with information about the robberies to call Crime Stoppers at 1-800-244-TIPS.