HOUSTON -- A woman believed to be brandishing a gun led officers to evacuate southeast Houston courtrooms, but the woman was only carrying sunglasses, KPRC Local 2 reported.

Officials said Fertinia Marie Gasaway, 45, was arrested on a warrant for 110 cases of alleged Medicare fraud and taken to a courtroom at the Houston Police Department's Southeast Patrol Substation on Mykawa at Bellfort at about 2:30 p.m.

When she was brought in to see a magistrate, she began to struggle with the officer, police said, and she said she did not want to go to jail and claimed to have a gun.

During a struggle, she was able to get one hand free of her handcuffs, and she barricaded herself in a bathroom, investigators said.

"(She said) 'I can't do this. I can't do this.' He said, 'Do what?' She said, 'Go to jail. You're going to have to kill me,'" HPD Capt. L. Bender said.

Police ordered two courtrooms evacuated.

A Taser was used to subdue her, officials said.

She turned out to be carrying sunglasses and not a gun, police said.

Gasaway has a previous arrest record for allegedly attempting to tamper with a government record, auto theft and credit card theft.

A witness said she would have been surprised if the woman managed to get a gun into the secured building.

"It's literally impossible for you to get through the metal detectors with a gun or any type of metal. Earrings make metal detectors go off," the witness said. "They just came, looking for the lady, and they made us clear out the courtroom."

The Mykawa substation houses a police substation, a courtroom and a jail.