The ICRC says more than 150 people are thought to have been killed in Mozambique, Malawi and Zimbabwe, but it says that number could go up as rescue teams make their way through.
But an ICRC team, carrying supplies for Marib's hospitals, were stopped by Houthis rebel forces. It's a serious blow to attempts by aid agencies to bring some help to Yemen's people.
Fabrizio Carboni said his staff in Gaza consisting of the ICRC's most experienced medical workers, who've worked in Afghanistan, Sudan, and Yemen, have been deeply affected by what they've witnessed.