A powerful snowstorm has struck across the United States, leaving at least three people dead and causing widespread disruption. As of Sunday afternoon local time, around 900,000 customers were without electricity, and more than 10,000 flights had been canceled nationwide, according to a BBC report. The National Weather Service said adverse conditions extended from Texas to New England, forcing the closure of schools and roads across multiple states.

Two people in Louisiana reportedly died from hypothermia, while another fatality occurred in Texas. The storm brought heavy snowfall, sleet, and freezing rain that could persist for several days, potentially affecting more than half of the country’s population. Meteorologist Allison Santorelli from the National Weather Service told CBS News that melting would be slow, hindering snow removal efforts.

Authorities warned that the hazardous weather could continue to disrupt transportation and power services in the coming days as cleanup operations face delays due to persistent cold and ice.