The top official at the Federal Emergency Management Agency (Fema) has resigned after six months in the role.
Acting head David Richardson stepped down on Monday from the US's lead disaster response agency. He took over the position in May after his predecessor was removed by Homeland Security (DHS) Secretary Kristi Noem.
In a statement to the BBC, the DHS praised Richardson for his "dedicated service" leading Fema as well as overseeing a review "that identified and eliminated serious governmental waste and inefficiency, while refocusing the agency to deliver swift resources to Americans in crisis".
Current Fema chief of staff Karen Evans will replace Richardson on 1 December.
Fema faced criticism during Richardson's tenure over its response to devastating floods in Texas during the Fourth of July holiday weekend.
