CHICAGO (CBS) — A man was hit by two cars Monday morning, after escaping from police custody on the Far South Side.

Police said 22-year-old Darrell Brewer, facing drug and gun charges, was in the back of a prisoner transport van, which arrived at the South Chicago District on the 2200 block of East 103rd Street in the South Deering neighborhood shortly before 6 a.m. The van was being used to transport prisoners from police stations to court, and Brewer had been picked up at the Gresham District station before arriving at the South Chicago station.

When the doors to the van opened at the South Chicago station, Brewer bolted into the street, police said. He was still wearing handcuffs at the time.

Police said Brewer ran down the street, and moments later was hit by two cars near 103rd and Yates.

Brewer was taken to Advocate Christ Medical Center in Oak Lawn, to be treated for minor abrasions.

The Chicago Police Department’s Bureau of Internal Affairs was investigating.