Updated: 05/01/2014 4:00 PM
Created: 03/30/2014 9:00 PM KSTP.com
By: Beth McDonough
The Waseca School District is making robocalls to families whose children attend Hartley Elementary after three small explosives were discovered at Hartley Elementary School playground last Monday.
Two of the explosives were found detonated, one of which was found inside a toy. The third explosive failed to ignite. Police say no one was hurt.
Parents became upset because most learned about the dangerous devices online and days after they were discovered on the playground, where children spend time every day.
"I think they should have alerted parents sooner," Jamie Robeck, whose two children attend Hartley, said.
Waseca police believe the small mini-bombs were homemade. Based on their condition, police believe the explosives had been stuck in the snow for months. It's not clear who put them on the playground or why.
Robeck received a robocall from the school district to reassure parents that grounds are safe for school Monday. Staff workers spent the weekend removing snow from the play area and looking for more devices - none were found.
The Waseca School District is reviewing its security protocols to find out why parents weren't alerted immediately, and the principal had scheduled a meeting with parents Monday morning.