An airstrike by warplanes from a Saudi-led coalition killed 36 civilians working at a bottling plant in the northern Yemeni province of Hajjah on Sunday, residents said.
In another air raid on the capital Sana'a, four civilians were killed when a bomb hit their house near a military base in the south of the city, Reuters reported.
"The process of recovering the bodies is finished now. The corpses of 36 workers, many of them burnt or in pieces, were pulled out after an airstrike hit the plant this morning," resident Issa Ahmed said from the site in Hajjah.
Human rights group Amnesty International said in a report this month the Saudi-led campaign had left a "bloody trail of civilian death" which could amount to war crimes.
Airstrikes killed 65 people in the frontline city of Taiz last Friday, most of them civilians, and the bombing of a milk factory in Western Yemen in July also killed 65 people including 10 children.
More than 4,300 people have been killed since the Arab coalition began bombing Yemen in late March to restore fugitive president Abd-Rabbuh Mansour Hadi to power and repel Houthi forces.
