Kentucky ? A tour bus carrying members of an extended Alabama family home from a reunion in upstate New York veered off a southern Kentucky highway early Monday and slammed into an overpass, killing one person and injuring 66 others.

State police said the driver apparently dozed off shortly before 3 a.m., while most of the passengers were asleep. The bus veered off Interstate 65, struck an earthen embankment and rammed a concrete bridge pillar near Bowling Green.

At least two of the injured were reported in critical condition Monday afternoon, including an 8-year-old boy and the 63-year-old driver, police said.

Trooper Steve Pavey said no charges were pending against the driver, and that the woman who died was ejected from the bus.