Yemen's Houthi group said on Tuesday it was unilaterally halting attacks in the Red Sea for two weeks to support peace efforts, a few days after Saudi Arabia suspended oil exports through a strategic Red Sea channel following Houthi attacks on crude tankers on 25 July.
The coalition has been at war with the Iran-aligned rebels, known as Houthis, since March 2015.
He said the nearest Houthi position targeted by the coalition on the day of the hospital attack was a weapons storage facility 7.5km from the hospital, east of Hodeidah.
The movement has been controlling the port since 2014.
Griffiths said the United Nations is still trying to avoid a battle for Hodeida.
Eight projects were inaugurated in the Yemeni region of al-Mahra on Wednesday during a ceremony that was attended by President Abdrabbuh Mansur Hadi and Saudi Ambassador of to Yemen Mohammed bin Saeed Al-Jaber, reported the Saudi Press Agency.
He said the coalition had aways applied the highest global and humanitarian standards in its targeting operations in Yemen.More news: Mollie Tibbetts Search Turns Up Red Shirt Near Pig Farm
On Friday, the UN's World Health Organisation said Yemen may be on the brink of a new cholera epidemic, with greater chance of a high death rate due to widespread malnutrition.
The Center also called for "full compliance with the provisions of global humanitarian law", saying Houthis were in violation of this following the attack which killed dozens of civilians.
Martin Griffiths, the United Nations special envoy for Yemen, said on Thursday he was inviting the Ansar Allah and Saudi-led coalition for talks in Geneva.
"We are not opposed to traveling to any neutral country to take part in such consultations", he told AFP. Turki al-Malki said Thursday in a television interview.
"We have given them time for a political solution and also, many opportunities", he said.
Humanitarian organizations have warned that the Hudaydah operation threatens to cut off essential supplies to millions of Yemeni people.
"The collation shall continue its work to free Yemen and return the Yemeni land to the legitimate government".
Elsewhere in his statement, Houthi complained that as a result of the Saudi-led aggression and siege of Yemen, people are suffering from the worst humanitarian crisis in the world.
"We welcome any initiative to spare bloodshed and stop aggression against Yemen", the official said in a statement carried by Yemen's official SABA news agency.