The High Relief Committee on Monday declared Aden, Taiz and Dhale as stricken Yemeni cities by all problems.
At its first news conference in Saudi capital Riyadh, the committee said the cities are facing acute shortages of food, medicines, fuels, power and water while calling for emergency aid for the affected in them.
Information minister and head of the committee, Nadia Al-Sakkaf, said all hospitals in Aden have been shut down and that medical teams from international organizations can't deliver aid because of violence and illegal acts by the Houthi militants.
Tourism minister, Muammar Al-Eryani, said Yemen needs emergency humanitarian interventions which should include foodstuffs, fuels and floating hospitals especially in Aden where the militants are continuing violence and the siege on it.
He said there is a need for at least four floating hospitals and half a million of fuels in a month.
The committee revealed that Houthi militants and dissident forces loyal to ex-president attacked and used as war positions hospitals and schools in Yemen.
At the conference, human rights minister, Ezz Al-Din Al-Asbahi, said around 9 million Yemenis are in dire need for healthcare services at the moment.
Almost all kidney clinics have shut down because of lacks of fuels and life-saving materials, he said.
Al-Asbahi said the Houthi militants are committing war crimes and grave human rights and freedom violations including shutdowns of media organizations, blocking news websites, arresting and hunting journalists and activists.
Moreover, he said the attacks by the Houthi militants mostly with heavy military weapons have destroyed around 365.000 houses completely and hundreds of thousands of houses partially in conflict areas.
The committee was formed lately under an order by president Abdu Rabbu Mansour Hadi to coordinate the aid delivery to the country, Al-Sakkaf said.