Schools across a swath of central Kentucky have cancelled classes Monday and residents have been urged to remain on high alert as the deep-woods search for a man suspected of opening fire along I-75 enters it third day.

LONDON, Ky. (AP) — As a grueling manhunt stretched into a third day Monday for a suspect in an interstate shooting that struck 12 vehicles and wounded five people, authorities vowed to keep up a relentless search as the stress level remained high for a rural area where some schools canceled classes.