NORTH WEBSTER, Ind. (WOWO):  Officials with Wawasee Schools are working with law enforcement to shed light what exactly sparked a four-bus crash north of North Webster leaving more than 50 students and three bus drivers injured, one of those drivers 61-year-old John Wagoner, the driver that was airlifted to a Fort Wayne Hospital, is in fair condition after undergoing surgery for internal injuries.We do know the drivers will undergo drug testing, which is a standard practice. More than 100 students were evaluated following that accident.  Authorities say the number of injured  students could grow in the next day or so.