According to VICE News international information portal, some Saudi diplomatic missions abroad sent earlier in February notification letters to the UN's Office for the Coordination of Humanitarian Affairs (OCHA) and other international organizations working in Yemen.
"[OCHA should] notify all the international organizations working in Yemen about the necessity of relocating their headquarters outside the military operations areas to be away from regions where the Houthi militias and the groups belonging to them are activating, in order for the Coalition forces to guarantee the safety," a letter reads, as quoted by VICE News.
Exclusive: Saudi Arabia warns UN and aid workers in Yemen https://t.co/OEBRMRXjNP pic.twitter.com/85M3bfaDp4
— VICE News (@vicenews) February 11, 2016
According to the media outlet, OCHA Chief Stephen O'Brien responded that the humanitarian community would continue to deliver its life-saving assistance and urged Riyadh to adhere to the international law while conducting air operations in Yemen.
In March 2015, a Saudi-led coalition of Arab states began airstrikes against Houthis in Yemen at the request of President Hadi, causing hundreds of civilian casualties in the military campaign. According to the Yemeni Health Ministry, the bombardments of the coalition in the country have killed over 7,000 people and injured more than 16,500.
International human rights organizations previously reported about dozens of schools, mosques, hospitals and other civilian objects ruined by the Saudi-led coalition.