"The destruction is extensive. In just the first weeks of the airstrikes in early 2015, around 1,170 structures were damaged or destroyed in Saada, according to the United Nations. As bombardment continued for more than a year, an estimated 40 percent of Saada’s 50,000 residents fled. Many of those who remained literally dug holes in the ground to hide in and moved schools and hospitals into caves for protection." "In and around Saada, 178 bridges, 13 power stations, 17,193 houses, 173 schools, 118 markets and 696 farms have been destroyed or damaged, according to the Houthi-affiliated Legal Center for Rights and Developments. The center says it has documented 2,262 civilians killed in Saada from March 2015 to March 2016, including 397 children, though the figures could not be independently confirmed."