SIOUX FALLS, S.D. (KELO AM) - Sioux Falls police have increased security on the bike trail in the wake of Wednesday’s assault at Cherry Rock Park.
Officer Sam Clemens says police have been undercover.
Clemens says investigators have been jogging, riding bicycles, walking and trying to blend in as another user of the bike trail system.
Clemens says the officer have not seen the assault suspect on the trail.