According to Group of Eminent International and Regional Experts on Yemen: "Violations of international law [...] Coalition air strikes have caused most of the documented civilian casualties. In the past three years, such air strikes have hit residential areas, markets, funerals, weddings, detention facilities, civilian boats and even medical facilities. [...] In 29 incidents, the Group of Experts reviewed air strikes hitting public spaces, including attacks on targets in densely populated areas that killed more than 300 civilians. The Group investigated two incidents where air strikes hit hotels. The 23 August 2017 air strike in the Bayt Athri area of the Arhab district, Sana’a Governorate, and the 1 November 2017 air strikes that hit a hotel in Al Layl market in Sa’dah Governorate combined killed more than 50 male civilians and injured another 50. In each case, at least 12 boys were among the casualties." ^[+]