Sedgwick County authorities are searching for an inmate who was accidentally released from jail.

The sheriff says 33-year-old Chad Alan Engel was booked into the jail July 2 on traffic charges and a warrant from McPherson County for a drug-related conviction.

The sheriff’s office says in a news release that Engel was released on traffic charges on Tuesday and was waiting to be taken to McPherson County. When a detention official saw Engel, who was wearing street clothes, he assumed Engel was being released and escorted him out of the building.

After the error was discovered, several agencies began searching for Engel. He was still on the loose early Thursday.

Engel is white, 6-feet tall, and about 180 pounds. He has blue eyes blond or strawberry blond hair.