A Portland woman is accused of threatening to blow up a Walgreens store unless a store employee gave her drugs.

Portland police said they arrested and charged the woman with robbing the Walgreens pharmacy at 340 Allen Ave. in Portland on Sunday morning.

Lt. James Sweatt said Elisabeth Sanborn, 34, of Portland entered the pharmacy at 9:02 a.m. and asked an employee for prescription drugs, indicating that she had an explosive device. She left with an undisclosed amount of prescription drugs, police said.

At 10:59 a.m. Sanborn returned to the Walgreens store and was arrested on a charge of robbery, police said.

After a search involving a police dog, police found no hazardous devices or explosives.

Police are urging anyone with information about the robbery to contact them at 874-8575.

Beth Quimby can be contacted at 791-6363 or at: [email protected]