Workers found a human skull near an Interstate 5 off-ramp Wednesday morning in southern Oregon, troopers say.

The Oregon State Police says state transportation department personnel were performing maintenance near northbound exit 124 in the Roseburg area when they found the skull. Search and rescue personnel looked for more human remains but didn't find any, according to troopers.

State police detectives continue to investigate. They ask anyone who has information to call 541-440-3334. Tipsters should reference case No. SP18-206360.

— Jim Ryan