They say at least two airstrikes hit the market in Mastaba today. The city is in Hajja province, which is controlled by Shiite Houthi rebels, but witnesses say there were no military targets near the market.
An official with the international aid group Doctors Without Borders says at least 40 of the wounded were transferred to a nearby hospital, three of whom were in critical condition.
Witnesses say they saw body parts and pools of blood after the strikes.