WATCH: Florida Police Officer Tasers Unarmed 62-Year-Old Woman in Back

A Florida police officer is under investigation after he was caught on camera firing a Taser into the back of a 62-year-old woman.

Terry Mahan of the Tallahassee Police Department was with colleagues responding to reports of brazen narcotics sales on Tuesday afternoon when the incident occurred.

Three people were arrested at the scene, after which a woman, Viola Young, approached the squad car apparently to inquire about one of the detainees.

She was advised to stay back, according to a police statement Wednesday, and an altercation ensued. At one point Mahan yanked Young’s arm and then fired the Taser as she attempted to walk away.

Tallahassee Police chief Michael DeLeo said that the video was strong enough evidence to put Mahan on administrative leave with pay pending an investigation.

“We will conduct a thorough investigation into this incident,” he said. “We want to be transparent with the community by sharing what we can at this point, including the video.”

Neither Young nor the three others arrested have been charged with any drugs offenses.