Crises often occur unexpectedly. What can never be unexpected is a leader’s response.
The leader must assume control of the response with alacrity as well as authority. Integral to the response must be the leader’s command presence and the ability to communicate coherently and correctly.
Do these things and the crisis will remain, but people involved in the crisis will be assured that someone is in charge and is mobilizing the right resources and right people to solve the problem.