EUGENE, Ore. -- Police in Eugene are searching for answers after explosives were found outside their headquarters on Country Club Road late Monday afternoon.

Lt. David Natt said incendiary devices were discovered by a crew who was mowing the front lawn.

"This is not a hoax device," Natt said. "This is a very serious matter."

The Eugene Metro Explosive Disposal Unit was called and defused the explosives. Natt would not go into details about the devices but said they are now in the hands of forensic experts.

"Our hope is that we get some physical evidence off it and that physical evidence leads us to somebody involved in the production and/or deployment of these devices," Natt said.

While the Eugene Police Department is in charge of the investigation, Natt said they have reached out to federal agencies and plan to review security camera footage.

"We're going to ask our neighbors for any footage, and we're going to review all the footage that we have," Natt said.

At this time police don't know who planted the bombs or if anyone was being targeted. John Ward, who was dropping off expired medication at the police station, said he was shocked to hear what happened.

"I'm speechless when I find out that people are planting bombs and bad things around town," Ward said. "I don't know why they'd want to do that, why would they want to hurt innocent people?"

Natt said they are asking Eugene police employees to be aware of their surroundings as they go to and from work.

Anyone with information should contact police at 541-682-5160.