Updated: 04/30/2014 5:48 PM
Created: 04/30/2014 3:51 PM KAALtv.com
A 17-year-old has been arrested in connection to the explosive devices found on an elementary school playground back in March in Waseca.
Waseca police arrested the boy around 10:30 p.m. Tuesday after executing a search warrant at a home and storage facility in Waseca. The Bloomington Bomb Squad was also part of the search.
Three small explosive devices were found on the Hartley Elementary School playground in March. Two of them were found detonated, one of which was found inside a toy. The third explosive failed to ignite.
Waseca police believe the small mini-bombs were homemade.
Police say no one was hurt, but parents were upset at the delay in information after the devices were found.
Felony charges are expected to be filed against the suspect Thursday, and a joint press conference with the Waseca Police Department and Waseca Public Schools is scheduled for 3 p.m. that day.
The incident is still under investigation, and anyone with information is asked to call the Waseca Police Department at 507-835-9720.