The death toll from catastrophic floods in Texas reached at least 78 on Sunday, including at least 28 children, as the search for girls missing from a summer camp entered a third day and fears of more flash flooding as rain fell on saturated ground prompted fresh evacuations.

President Donald Trump announced that he signed a "Major Disaster Declaration" for the deadly floods in Texas Hill Country in a post on Truth Social Sunday. The declaration comes as rescue and recovery operations enter a third day following the devastating floods.

Mr. Trump said his administration was working with state and local officials and that Department of Homeland Security Secretary Kristi Noem would be arriving in Texas shortly. DHS oversees the Federal Emergency Management Agency.