Wrong-way driver Paul J. Bittlebrun, 80, killed, 4 injured after pickup and bus collide on U.S. 59 near Victoria, Texas

Investigators say an 80-year-old driver has died after his vehicle going the wrong way on a South Texas highway hit a passenger bus bound for Laredo.The Texas Department of Public Safety says the bus driver and three passengers were hurt in the wreck Monday night on U.S. 59 near Victoria.DPS Trooper Ruben San Miguel says the pickup truck driver, Paul J. Bittlebrun of Victoria, died at the scene. The Los Chavez Autobuses driver and the injured passengers were transported to hospitals. Details weren't immediately available on their conditions.Authorities are trying to determine why Bittlebrun was driving the wrong way and his truck collided with the bus traveling from Houston. Another bus picked up the uninjured passengers.A message left with the bus company wasn't immediately returned Tuesday.