A woman Howard County police have charged with robbery told them she had a “hoax explosive device” in her car that might have been intended for use during a crime, authorities said.

In a Wednesday press release, police said they went to a Jessup pharmacy shortly before noon Monday in response to reports of a robbery during which a man showed a gun and demanded Oxycodone. The man then fled into the woods, police said.

After a search, police found Stoni B. Horton, 35, of Laurel, in a car nearby, according to the release. Police said they believe Horton planned to be a getaway driver for Roy Lee Moore, 38, also of Laurel. Both have been charged with armed robbery and conspiracy to commit robbery, police said.

Horton told police who seized her vehicle that it contained a hoax explosive device; police evacuated their headquarters, they said, and confirmed that the device was not an actual explosive. That investigation continues, police said.

Horton was released on bond, while Moore remains held.