USCG release – Coast Guard, partner agencies team up for mass casualty exercise. ASTORIA, Ore. — Coast Guard Sector Columbia River, alongside state and local agencies, are scheduled to hold an active shooter drill Wednesday at Sector Columbia River in Warrenton from 8 a.m. to 1 p.m. Warrenton and Astoria residents should expect a large number of first responders, equipment, sirens, and simulated gunfire. This is a test of personnel and equipment and will not pose a threat to the public. Due to operational considerations, no media will be allowed at Sector Columbia River during the training. Organized by the Coast Guard, this important drill will simulate a full-scale response to a large-scale attack. It will include coordination between the following responding agencies: Coast Guard; Federal Bureau of Investigation; Warrenton Police Department; Astoria Police Department; Clatsop County Sherriff’s Office; MEDIX; Columbia Memorial Hospital.