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Gunfire erupted outside Campbell's Pharmacy in Adamsville following a morning robbery on Tuesday, Jan. 6, 2016.

Gunfire erupted outside an Adamsville pharmacy this morning during an apparent robbery attempt.

Witnesses said shots were exchanged between an employee and the assailant, but no one was injured. Adamsville police Lt. Ira Leniger said police now have two suspects in custody.

The incident happened about 9:30 a.m. at Campbell's Pharmacy on Veterans Memorial Drive. Leniger said the assailant fired at least one shot during the robbery. He declined to confirm whether any pharmacy employees returned fire, but witnesses said multiple shots were fired. Store employees had no comment.

Joy Hazel was in the waiting room at Adamsville Family Medicine, which is next door to the pharmacy, when the shots rang out.

"I was just sitting in the doctor's office and I seen (the employee) come by and duck down. I seen him walk in front of the car and then I seen him shoot. He came back by, ducked down behind the car and raised up and shot again,'' she told AL.com. "We thought it was a car backfiring but it wasn't. He was shooting at someone who robbed him."

Hazel said the robber returned fire. "I was sitting on the back wall and turned around and I was face to face with it,'' she said.

Hazel said she didn't see the gunman or gunmen. " I just ran,'' she said. "The door was locked and I was yelling at someone to let me back there (behind the front counter at the doctor's office). They let me in and we all hid in the back."

She said there were spent shell casings in the parking lot. No people or cars were hit. She said investigators recovered a glove from the scene.

"I've never been so scared in my life,'' she said. "That's the first time I've ever experienced anything like that."

Leniger said the suspects were captured a short time later on Minor Parkway. Their names are being withheld pending formal charges and the investigation is ongoing.