El Centro Regional Medical Center and Pioneers Memorial Hospital took part in a disaster drill Thursday meant to review their ability to react to terrorism should it strike the Imperial Valley.
El Centro Fire Department Battalion Chief Tim Reel said the scenario for the drill involved terrorists transporting sarin gas across the border into the United States.
Reel said, according to the scenario the terrorists were driving through the downtown Port of Entry in Calexico with a barrel of the deadly nerve gas.
Border authorities stopped the terrorists' vehicle and directed them into the secondary inspection area.
The terrorists then bolted north in their vehicle through the port to avoid arrest. As they left, the barrel of gas fell from the vehicle bursting open.