UNICEF has been working to improve conditions and provide services for thousands of children living at the al-Hasakeh camp.
According to UNICEF, the salaries of more than 1.25 million public sector employees have been suspended for more than two years.
Yemeni and international activists are calling on the Iran-backed militia to overturn the death sentences it handed to 30 alleged spies.
Some Syrian refugees who opted to return to their homeland have been arrested and imprisoned, in breach of reconciliation agreements.
The Houthis are diverting aid to NGOs set up by the militia and are selling food aid in the black market, according to Yemeni and UN officials.
Public anger is mounting in areas hardest hit by the flooding, as the IRGC uses funds intended for relief efforts to bring in foreign militias.
Yemen's Ministry of Human Rights has declared the Hajjah province district of Hajur a disaster area, and has urged the UN to intervene.
The pledges come on the same day the UN announced its teams had been able to reach vital food aid warehouses in the port city of al-Hodeidah.
More than one million people have been displaced from the Red Sea province over the last six months as the situation remains unstable.
The head of the UN observer mission in Yemen has called for international forces to manage isolated areas in the city and for the opening of safe corridors.