A crash Thursday afternoon killed a 57-year-old motorcyclist and led to the arrest of a woman suspected of being on drugs at the time of the collision, Phoenix police said.

Officers responded about 2:30 p.m. May 2 to the 2100 block of East Broadway Road where they found a motorcyclist, 57-year-old Mark David Adams, with serious injuries. He was taken to a hospital where he died.

The vehicle involved in the collision remained at the scene, and the driver was identified as Guadalupe Lopez Lopez Alvarez, 43. 

Detectives said preliminary information suggests that the vehicle driven by Lopez Alvarez was facing east when it began a U-turn. At the same time, the motorcyclist was also eastbound and struck the vehicle driven by Lopez Alvarez as it crossed Adams’ lane.

Lopez Alvarez was determined to be the at fault vehicle in the collision, authorities said.

“Lopez Alvarez was determined to be impaired by drugs at the time of the collision.  She was arrested and will be booked into jail on at minimum one count of manslaughter,” police stated in a release.