Page "Oklahoma City bombing" Paragraph 36

At 9: 03: 25 am CST, the first of over 1, 800 9-1-1 calls related to the bombing was received by Emergency Medical Services Authority ( EMSA ).

By that time, EMSA ambulances, police, and firefighters were already headed to the scene, having heard the blast.

Nearby civilians, who had also witnessed or heard the blast, arrived to assist the victims and emergency workers.

Within 23 minutes of the bombing, the State Emergency Operations Center ( SEOC ) was set up, consisting of representatives from the state departments of public safety, human services, military, health, and education.

Assisting the SEOC were agencies such as the National Weather Service, the Air Force, the Civil Air Patrol, and the American Red Cross.

Immediate assistance also came from 465 members of the Oklahoma National Guard, who arrived within the hour to provide security, and from members of the Department of Civil Emergency Management.