MIDLAND CITY, Ala. - A U.S. official tells CBS News that a nearly week-long hostage standoff in which a 5-year-old was being held captive in southeast Alabama has ended in the kidnapper's death. The child is said to be okay.

Authorities said 65-year-old Jimmy Dykes gunned down a school bus driver Tuesday and abducted a 5-year-old boy from the bus before taking him to an underground bunker on his rural property. The driver, 66-year-old Charles Poland Jr., was buried Sunday.

Dykes, a decorated Vietnam-era veteran described as a loner who railed against the government, lived up a dirt road just off the main road north to the state capital of Montgomery, about 80 miles away.

CBS radio affiliate WSB says reporters heard what may have been a concussion grenade before ambulance and fire vehicles went to and from Dykes' property about 4p.m. Eastern Time Monday.