Eudora Police Chief Grady Walker resigned Thursday, said John Harrenstein, Eudora city administrator.

Walker’s resignation is effective Sept. 7, though Harrenstein said Walker has been out of the office on medical leave. Eudora Police Sgt. Chris Casagrande has been named acting police chief until an interim chief is named, Harrenstein said.

“We look to begin the search process very soon,” Harrenstein said.

Because it was a personnel matter, Harrenstein said he could not comment further on Walker’s resignation. Attempts to reach Walker on Thursday were unsuccessful.

Walker was named police chief in April 2010, after 32 years in law enforcement. Walker worked for the Douglas County Sheriff’s office and jail right out of high school, and after 10 years joined Douglas County Youth Services, where he served as assistant director for 12 years.

In 2007, Walker returned to the streets, working full time for the Eudora Police Department.