Police arrested a man Saturday for threatening to blow up Philadelphia's iconic Liberty Bell, according to police.
The unidentified man apparently left two black backpacks in front of the Liberty Wheels wheelchair and scooter rental shop in downtown Philadelphia.
Police said a bomb squad was called in and secured the scene but found that the bags did not contain explosives.
"I have no idea why" the man did this,Â police spokeswoman Christine O'Brien said.
The bell is considered an iconic monument to American independence.