Tiffany Livingston (PICTURES): Playboy Model Detained After Allegedly Trying to Open Plane Door Mid-Flight

NEW YORK (CBS) New pictures have surfaced of Tiffany Livingston, the 21-year-old Playboy model who was detained after allegedly trying to open a plane door in mid-flight, according to reports.

PICTURES: Tiffany Livingston Detained

Livingston was aboard JetBlue Flight 522 on Thursday, flying from Orlando, Fla., to Newark, N.J., when the woman suddenly jumped out of her seat and tried to open the door of the plane, police told the New York Post.

An unnamed source told the newspaper that it was a bad case of high anxiety mixed with not taking her medication.

"She said she's gone through this before, but never this bad, and didn't have...her medication," a source told the paper.

Kathleen Longsderff, Agency Director at Livingston's former agency says, "[Livingston] has dealt with minor anxiety issues in the past, however has always maintained a high level of professionalism in the modeling business."

Longsderff, of New England Models Group, says that Livingston "began modeling in New England and then traveled to Paris in 2008. She went on to successfully model in Barcelona, Tokyo, Hong Kong and Singapore."

Livingston, from Merrimac, R.I., was placed under federal custody on Thursday, reports the New York Post. Charges are still pending.

Livingston was featured as the centerfold for the Singapore version of Playboy, VIP, in 2009. In the magazine, she was described as "not just another pretty face."