3 / 10

This image provided by WXII Channel 12 news, shows the scene following a 75-vehicle pileup on Interstate 77 near the Virginia-North Carolina border in Galax, Va., on Sunday, March 31, 2013. Virginia State Police say three people have been killed and more than 20 are injured and traffic is backed up about 8 miles. (AP Photo/WXII, William Bottomley) MANDAORY CREDIT: WXII,WILLIAM BOTTOMLEY

This image provided by WXII Channel 12 news, shows the scene following a 75-vehicle pileup on Interstate 77 near the Virginia-North Carolina border in Galax, Va., on Sunday, March 31, 2013. Virginia State Police say three people have been killed and more than 20 are injured and traffic is backed up about 8 miles. (AP Photo/WXII, William Bottomley) MANDAORY CREDIT: WXII,WILLIAM BOTTOMLEY

Three killed in highway pileup

A series of chain-reaction wrecks involving nearly 100

vehicles along a mountainous, foggy stretch of Interstate 77 near the Virginia-North Carolina border, killed

three people and injured 25 others on March 31.