The militia's violations include killings, torture, detentions, looting of public and private property and the recruitment of child soldiers.
Since 2015, the kingdom has funneled $16 billion in humanitarian aid into all regions of Yemen, with 'transparency and impartiality'.
The religious minority has faced systematic persecution under the Iran-backed militia and has raised concerns that this will escalate.
Birth registration ensures children born to Syrian parents in Lebanon will eventually be able to claim a Syrian identity card and benefits.
The camp, which lies near the country's southern border with Jordan, houses thousands of Syrians in dire living conditions.
The aid had been intended for delivery to families in the city of Taez in November 2018, but was detained at a checkpoint for many months.
Recent events have made it clear that Iran and the Houthis seek to prolong the conflict in Yemen to further their own goals, experts say.
Caution prevails in the southern port city in the aftermath of clashes between Yemeni forces and the Southern Transitional Council.
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.