As Amanda Bynes is being held on a psychiatric hold after setting an elderly woman's driveway on fire, actress Ashley Benson took to her official Instagram account on Wednesday, July 24, mocking the former Nickelodeon star.

"Doing my Amanda bynes look this afternoon," the Pretty Little Liars actress wrote. In the photo, Benson pouted her lips for the camera, pulled at one side of her hair, and closed one eye.

The photo is similar to the Twitter selfies Bynes had uploaded over the past several months.

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After posting the photo -- and getting over 22,000 likes -- Benson took down the photo.

"To clear up the whole Instagram thing, I had no idea what her situation was. Truly sorry if I offended anyone," she tweeted July 25.

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As EnStars previously reported on Monday, Bynes was hospitalized on a 5150 hold -- a 72-hour involuntary hospitalization during which the individual in question undergoes a mental health evaluation.

"Amanda Bynes was involved in a disturbance in a residential neighborhood last night in Thousand Oaks in the 200-block of Avenida De Los Arboles," Captain Don Aguilar of Ventura County Sheriff's Office told EnStars in a statement. "Deputies investigated the incident and determined that she met the criteria of 5150 W&I (California Welfare & Institutions Code). She was detained and taken for a mental health evaluation. Ventura County Fire Dept. also responded to this incident in reference to a report of a gas can on fire in a driveway."

On Thursday, sources told TMZ that doctors have determined Bynes is suffering from a severe mental illness "with schizophrenic tendencies."

"There's a good Amanda and a bad Amanda," the source said, adding that Bynes was good for about ten hours before she had a meltdown. She allegedly "got incoherent and so out of control she had to be physically restrained," the source said.

Tags: Amanda Bynes Ashley Benson pretty little liars