Yemeni health officials and witnesses say Saudi-led warplanes have bombed a busy market in a northern city, wounding dozens of people.

They say at least two airstrikes hit the market in Mastaba on Tuesday. 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.

The officials spoke on condition of anonymity because they were not authorized to speak to the press. The witnesses spoke anonymously out of security concerns.