A Baltimore man struck in a hit-and-run crash in Anne Arundel County Thursday has died, police said.

Alex C. Hernandez, 25, was biking across Route 2 near Bon Air Road in Brooklyn Park, Md., when a dark sedan hit his left side, authorities said. He sustained life-threatening injuries and was taken to University of Maryland Medical Center, where he later died.

It is unclear whether alcohol or speeding was involved in the crash, police said.

Police are looking for a black female who wears pink medical scrubs. They also are looking for the sedan, which they believe is a black Hyundai Sonata with substantial damage to its passenger-side windshield and mirror. Anyone with information about the incident is asked to contact Anne Arundel police.