Published: Jul 25, 2013 3:25 PM EDT

MIAMI (AP) - Parts of a South Florida airport were evacuated after a 55-gallon drum containing depleted uranium was found.
    
Miami-Dade Fire Rescue reports that the exposed drum was found Thursday near a dismantled airplane at Opa-locka Executive Airport. A hazmat team from Miami International Airport responded to assess the situation, as well as a possible spill.
    
A fire rescue spokesman says teams are monitoring levels of radiation, but only minimal levels have been detected so far.
    
It wasn't immediately clear where the depleted uranium came from or why it was exposed. In the past, depleted uranium has been used as counterweights for some aircraft.

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