The 7-Eleven store at 251 West Central St. was robbed again Saturday night, after being robbed twice in one week earlier this summer, according to Natick Police.

At around 9:45 p.m. an unarmed robber allegedly demanded cash from the employee and escaped on bicycle, which was later discovered on Second Street in Framingham.

According to police, the suspect is a Spanish-speaking male, possibly in his thirties, heavy-set with an athletic build.

Anyone with any information should call the Detective Division at 508-647-9520. Anonymous tips can be submitted Online at www.natickpolice.com.