An airstrike by the Saudi-led military coalition killed at least 12 people in northwestern Yemen on Sunday.
A resident, however, told Reuters 15 people were killed in the airstrike in Sa'ada.
Saudi Arabia's war on Yemen has killed more than 10,000 people since 2015, displaced more than two million people, caused a cholera outbreak infecting nearly one million people and led the country to the brink of famine.