A man is facing charges following the explosion of a homemade device inside Newaygo High School.

33-year old David Robert Daniel Saylor was arraigned Tuesday on counts of manufacturing or possession of molotov cocktail and contributing to the delinquency of a minor. The charges include heightened penalties because Saylor is being charged as a habitual offender.

Investigators say Saylor is the father of the student who caused Monday's explosion at Newaygo High School.

Michigan State Police say a 16-year-old student brought the device to school, then accidentally set it off inside a classroom injuring himself and four other students and a teacher.

Troopers continued to sweep a home outside Newaygo on Tuesday after more explosive devices were found inside.