Surveillance photos show a woman who attempted to rob the Mobil gas station, 250 North Route 31 in Crystal Lake, Thursday evening.

New surveillance photos have been released by police of the woman who tried to rob a Crystal Lake gas station at gunpoint last week.

The Crystal Lake Police Department responded around 9:18 p.m. October 31 to the Mobil gas station, 250 North Route 31, for a report of an attempted armed robbery.

Officers learned a suspect entered the store, displayed a suspected handgun and demanded cash from the cashier. The suspect fled the store without any cash or merchandise after an audible alarm was activated.

The suspect was last seen running north from the scene. No injuries were reported.

Witnesses described the suspect as a white female, 20-30 years of age, approximately 5-foot-5, weighing approximately 200 pounds, police said.

“This case remains an active investigation. Crystal Lake Police are requesting that anyone who may have information regarding this case to contact the Crystal Lake Police Department,” the department said in a statement.

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Those with information relating to the incident are asked to call Crystal Lake police at 815-356-3620 or Crime Stoppers at 800-762-7867 for those who wish to remain anonymous.