Overall, the United Nations has appealed for $2.96 billion to provide assistance and protection to people in Yemen in 2018.
"Yemen is the world's worst humanitarian crisis".
Pay for what you break? "But humanitarian agencies report access constraints in 90 percent of districts in Yemen", Guterres said.
"We all know that there is a war". This new funding will provide protection, food assistance, safe drinking water, emergency shelter, medical supplies, treatment for malnourished children, and other critical support for millions of vulnerable Yemenis and refugees who are living in Yemen.
The funding brings the total US humanitarian assistance for the war-torn country to over $854 million since 2017.
Saudi Arabian King Salman bin Abdulaziz Al Saud held a telephonic conversation with US President Donald Trump in which he said that it is necessary for the worldwide community to move forward the Middle East peace process.
Guterres underscored that the only way to ensure that Yemen donor conferences do not continue year after year is for the sides to negotiate a peace deal.
"I believe there is an opportunity and that opportunity must be seized", Guterres said, explaining that Griffiths was "encouraged" by his trip and sees a window for further talks.
The war has killed more than 10,000 people, displaced more than two million and driven the country - already the poorest on the Arabian Peninsula - to the verge of starvation.
Tuesday's attack came one day after an airstrike by the Saudi-led coalition killed at least 14 people near Hodeida.
While the coalition has eased the blockade, restriction on deliveries persist.
Guterres said he saw "positive perspectives" for preparing a plan of action "to lead to an effective inter-Yemeni dialogue able to achieve a political solution, with of course the involvement of all those that are relevant in this conflict".
U.N. Secretary-General Antonio Guterres, right, stand up next to Swedish Minister for International Development Cooperation and the climate and Deputy Prime Minister Isabella Loevin, left, as he speaks to the media during a press stakeout after the High-Level Pledging Event for the Humanitarian Crisis in Yemen, at the European headquarters of the United Nations in Geneva, Switzerland, Tuesday, April 3, 2018.
More than 10,000 Yemenis have been killed and 53,000 wounded since the start of the coalition intervention in Yemen.