Looming famine. Rampant disease. Deadly airstrikes.

This is the daily reality for the residents of Yemen suffering a staggering humanitarian crisis driven by a fierce civil war.

United Nations experts have warned that some of the actions carried out by the warring parties — the Saudi-led coalition and the Iran-backed Houthi rebels — could amount to crimes against humanity because of their systematic and widespread execution.

The calls for accountability have been heightened since a Saudi-led coalition tightened a blockade of sea, air and land ports earlier this month after a missile fired by Houthi rebels was intercepted near the Saudi capital. The blockade has since been loosened, but it is still cutting civilians off from desperately needed humanitarian aid and food.