MIDLAND CITY, Ala. — Police, SWAT teams and negotiators were at a rural property where a man was believed to be holed up in a homemade bunker Wednesday after fatally shooting the driver of a school bus and fleeing with a 6-year-old child passenger, authorities said.

The man boarded the stopped school bus in the town of Midland City on Tuesday afternoon and shot the driver when he refused to let the child off the bus, Dale County Sheriff Wally Olsen told WBMA-TV (http://bit.ly/WthpQh). The driver later died of his wounds. His identity wasn't released.

The shooter took the child, authorities said.