A 24-year-old woman was arrested Tuesday and charged with killing Maya Young, a 25-year-old transgender woman who was stabbed to death in Frankford last month.

Tiffany E. Floyd, 24, is being held without bond on murder and conspiracy charges, according to court records.

Authorities said more arrests were "imminent," but they did not elaborate Tuesday night.

Young, whose birth name was Norman Lindsey, was found injured just before midnight Feb. 20 on the 4800 block of Penn Street, according to police. She had multiple stab wounds on the neck and chest and died at Aria Health-Frankford Campus at 12:21 a.m., police said.

Young was at least the third transgender person killed in Philadelphia over the last year: Kiesha Jenkins, 22, was beaten, robbed, and gunned down in Logan last October, and London Kiki Chanel, 21, was stabbed in North Philadelphia last May.

Court records show that Young pleaded guilty to prostitution charges last year, and had previously been placed on probation for a conviction on similar charges.

Floyd also has a history of prostitution arrests, court records show. She has been convicted of prostitution  four times since 2013, most recently on Sept. 4, when a judge ordered her to serve 18 months of probation stemming from an Aug. 13 arrest.

Police have not yet released a motive om Young's killing.

Nationwide, at least 21 transgender people were killed last year, according to the Human Rights Campaign, the highest total on record.

Staff writer Dana DiFilippo contribited to this story.