The restaurant involved was immediately evacuated and the premises cleared by police.
The subsequent investigation determined the call originated from the Longlac area, northeast of Thunder Bay.
Members of the Greenstone OPP Detachment were able to locate and arrest a young person without incident.
The 15 year old youth from Longlac has been charged with one count of Mischief and will answer to the charge later this spring in Longlac.