They killed "mostly women and children".
Yemeni health officials state an air strike by the Saudi-led coalition in the country's north reach hit a wedding party, the previous moment, killing at least 15 persons.
Most of the dead were women and children who were gathering in a tent set up for the wedding party in Hajjah's Bani Qays district on Sunday, a medical official said.
The coalition said another missile crashed in a Saudi desert on Sunday, without specifying a location, adding it caused no damage.
Hospital chief Mohammed al-Sawmali says the groom and 45 wounded guests were brought to the local al-Jomhouri Hospital.
Yemen has been embroiled in a conflict between the Saudi-backed government and the Iran-backed Houthis since late 2014.
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"We take this report very seriously and it will be fully investigated as all reports of this nature are".
Saudi-led coalition airstrikes are behind 61% of all civilian casualties in Yemen's war, according to the United Nations human rights office.
The Saudi aggression was launched in March 2015 in support of Yemen's former Riyadh-friendly government of president Abdrabbuh Mansour Hadi and against the country's Houthi Ansarullah movement, which has been running state affairs in the absence of an effective administration.
The Yemen war has killed more than 10,000 people, displaced more than 2 million and driven the country to the verge of starvation, according to the United Nations.
Saudi Arabia and the US have so far managed to escape official blame for Yemen's humanitarian crisis by setting up a panel to investigate strikes that have killed civilians, which largely cleared the coalition of responsibility.