PALM SPRINGS — Thirteen people died Sunday morning after a tour bus slammed into the back of a big rig on Interstate 10 near Palm Springs while returning to Los Angeles from a casino, The Desert Sun reports.

In addition, 31 others were injured in the crash, which shut down the westbound side of the freeway, according to the California Highway Patrol. They were believed to be sleeping when the bus collided with the tractor-trailer truck shortly after 5 a.m. All the victims were adults, according to the report, with the surviving passengers and the big rig driver only suffering minor injuries. For the full story, click here.