A preliminary search turned up no explosive devices at Nicklaus Children's Hospital after a threat was called in Friday, Miami-Dade Police said.
Officers responded to the hospital at 3100 Southwest 62nd Avenue around 3 p.m. after a 911 call was received that said there was a bomb in the parking lot and a shooter on the premises, officials said.
The hospital was evacuated as a precaution but no explosive devices or shooter were found, officials said.
The incident lasted several hours with patients and staff being escorted outside while officers searched the hospital.
The all clear was finally given around 8 p.m. and the hospital resumed normal operations.
"My son was in the middle of surgery. He was two hours in already and the doctor called me to tell me he had to close him up, couldn't finish it," one woman told NBC 6.
"In an abundance of caution, we contacted law enforcement after receiving a threat to the main hospital. Law enforcement officials have given the all clear for us to resume full operations," hospital officials said in a statement. "We are grateful for the calm and professional conduct of our employees and for the dedication and rapid response of our local police, who share our commitment to the safety and well-being of children."
Police said the incident remains under investigation and they are working to track down the caller.
Check back with NBC 6 for updates.