At least 30 people are reported to have been killed in Saudi-led coalition Air Strikes on a rebel military police camp in Yemen's capital, Sanaa.
A guard said an initial attack damaged one wing of the jail, prompting some inmates to try to escape. Then another strike almost demolished the building.
The coalition backs Yemen's government in its war against the Houthi rebel movement.
More than 8,670 people have been killed and 49,960 injured since the coalition intervened in the conflict in 2015, according to the UN.