MOUND CITY, S.D. — A Bloomington, Calif., semi driver was identified as the man killed in last week's collision of two semi trucks in north-central South Dakota.

Authorities say Rafael Lopez, 58, was driving a southbound 2014 International that struck the oversized load on an oncoming 2004 Peterbilt on Highway 83 around 3:45 p.m. July 17, the South Dakota Department of Public Safety said.

Lopez sustained fatal injuries and died at the scene. The Peterbilt driver, David Thompson, 31, of Milbank was not injured.

Both drivers were wearing seat belts, authorities said.

Mound City is about 100 miles west of Aberdeen.