(Indianapolis, IN) - The Indiana State Police were kept busy Friday with a spree of school bomb threats across the state.

On Friday morning, police issued a statement that a threatening email message had been sent to several dozen Indiana schools referring to explosive devices being allegedly planted at various campuses.

Detectives worked with local law enforcement and school administrators throughout the day. No explosive devices were found.

As many as 35 schools were threatened, including two districts in the Goshen area and one in Lake County. No La Porte County schools reported any threats.