RICHLAND, Wash.- The Washington State Patrol Bomb Squad was called in after a huge bomb was found lying on a riverbank near the Richland Wye.
The bomb squad detonated the World War II era bomb after finding they couldn't safely remove it from the area.
Police say the bomb was in good condition indicating someone most likely left it there in the last day or two.
"Heat, water, fluctuating temperatures all can make explosives a little bit less stable. A lot of times people see these on tv and figure it's just something you can pick up and put in your trunk somehow, absolutely not the case," said Richland Bomb Squad Commander Capt. Mike Cobb.
Police now want to know who put the bomb there.
They think it may have been someone trying to get rid of a relative's World War II memorabilia.
If you have any information you're asked to call Richland police.