A 55-gallon drum of uranium was found Thursday in the area of a dismantled airplane at Opa-locka Executive Airport, according to Miami-Dade Fire Rescue. The area has been evacuated while a hazmat team from Miami International Airport assess the situation as well as a possible spill. Teams are “monitoring levels of radiation,” fire-rescue spokesman Arnold Piedrahita said Thursday afternoon on Twitter. So far, “minimum” levels have been detected, he said.