Huntsville police are asking state law officers to investigate the circumstances of a man who died while in their custody.

Huntsville officers were investigating a report of a stolen vehicle Tuesday and encountered the man, who tried to run from police but was taken into custody, police said.

Police say he showed signs of a possible drug overdose, and paramedics were called to treat him. He later died at a hospital.

Huntsville police have asked the Alabama Law Enforcement Agency’s State Bureau of Investigation to investigate, WHNT-TV reported.

The man’s identity wasn’t released.