NORFOLK, Va. (WVEC) -- If you saw a lot of activity outside of Sentara Norfolk General Hospital Thursday morning, don't be alarmed. The hospital conducted a 'terrorism incident' drill to stress trauma and surge capabilities.

We're told the scenario was an explosion at Town Point Park during a festival. It was immediately all hands on deck at the hospital, and a command center was formed. Each victim is sectioned off according to the severity of injury.

"My team is responsible tor taking care of patients who have severe, life-threatening injuries. They can't breathe, their blood pressure is very low, they seem to be actively bleeding," said Doctor Jay Collins.

He says when a mass casualty strikes, it overwhelms everything in the hospital.

"The operating room, the emergency department, the intensive care units, radiology, the CAT scans, even places to put these other patients, we're really trying to stress the system," said Collins. Hospital staff is trying to figure out what works and what needs to improve.

"Today is all about learning so that we can be better the next time," said Kurt Hofelich, president of Sentara Norfolk.