The "Hairspray" star was taken into custody in California for an involuntary mental evaluation, also known as a 5150 hold, after she allegedly tried to start a fire on a driveway.
And it has now emerged that Bynes has been accused of trashing a room at the luxury Ritz-Carlton hotel in New York City last week, reported TMZ Online.
According to reports, Bynes was asked to leave the premises after she was allegedly caught smoking in her room and they have published pictures which appear to show the damage.
The hotel staff is reportedly tallying up a bill for the damages. Bynes reportedly checked out of the hotel just hours before she boarded a plane to California. She is expected to remain in hospital for up to two weeks.