FOUNTAIN HILLS, AZ - Maricopa County Sheriff’s deputies were back on the scene Tuesday after grenades and fuses were found in the desert near Fountain Hills.
According to officials, the explosives were spotted on State Route 87 near mile post 208 Monday evening.
Investigators said they found a handgun along with a number of ammo cans buried in the ground in the same area they discovered the explosives.
The MCSO bomb squad used a map they found with the explosives on Monday to pinpoint 20 different locations they believed the explosives were.
Seven of the twenty locations on the map had ammo cans buried in the ground. All of them were filled with various types of explosive components including pieces of grenades. They also found a handwritten note listing inventory with one of the cans.
MCSO officials said the rest of the 20 locations on the map are shooting targets the person who buried the ammunition used.
Officials matched all the ammo they found in the cans with the inventory list and now believe everything is accounted for.
They don't know who is responsible for burying the explosives or ammunition, but have some ideas as to why the person is doing it.
"It could either be a Doomsday prophet or a hobbyist, maybe they think they're being safe by burying these things and they come out here every once in a while for target practice and use these devices," said MCSO Sgt. Brandon Jones.
Officials said the explosives vary in age from new grenades, to grenades from 50 or 60 years ago.
MCSO completed their search around 5 p.m. Tuesday and have opened the area back up to the public.
Copyright 2013 Scripps Media, Inc. All rights reserved. This material may not be published, broadcast, rewritten, or redistributed.
Click on the region names in the map below to see news from that region.
RIGHT NOW: Top Stories
Arias sat down with ABC15's Amy Murphy Tuesday night, just hours after jurors began deliberating, to speak out about the trial, her feelings about Travis Alexander's death and whether she wants to live or die.
House Republicans who oppose abortion promoted legislation Wednesday that would ban abortions after 20 weeks of pregnancy.
Hundreds of Phoenix police officers gathered at Ridgeline Academy in Phoenix Wednesday morning in a show of support for a fallen comrade.
The Oklahoma medical examiner's office says it has positively identified 23 of 24 people killed in the tornado that ripped through the Oklahoma City suburb of Moore, including 10 children.
Officer Daryl Raetz died after he was struck by a vehicle during a DUI traffic stop early Sunday morning.
The Boy Scouts of America will convene a two-day meeting of 1,400 local leaders to consider changing its long-standing ban on openly gay boys in the scouting movement.