According to the Panel of Experts on Yemen: "137. The Panel documented that the coalition had conducted air strikes targeting civilians and civilian objects, in violation of international humanitarian law, including camps for internally displaced persons and refugees; civilian gatherings, including weddings; civilian vehicles, including buses; civilian residential areas; medical facilities; schools; mosques; markets, factories and food storage warehouses; and other essential civilian infrastructure, such as the airport in Sana ’a, the port in Hudaydah and domestic transit routes (see annexes 52, 54 and 61). 138. The Panel documented 119 coalition sorties relating to violations of international humanitarian law. Many attacks involved multiple air strikes on multiple civilian objects. Of the 119 sorties, the Panel identified 146 targeted objects(see annex 47). [...] Bombing of Faj Attan in Sana’a, Yemen (dated 20 April 2015) On Monday, 20 April 2015, the Coalition undertook targeted airstrikes on a Scud missile base in Sanaa, which triggered a large explosion killing 25 people and wounding almost 400. The blast hit the base on Faj Attan mountain, beside Hadda district, where the presidential palace and many embassies are located, blowing out the windows of homes for a number of kilometers beyond the site. The incident was stated to be “the largest recorded number of civilian deaths and injuries from aerial explosive weapons took place in Sana’a […].” Residential homes near the site were flattened. The shockwaves were felt up to four miles away, and local Red Cross workers said that civilian casualties were spread throughout the city as windows were shattered and debris was scattered across Sana’a.” ^[+]