dubai saudi-led coalition aircraft strike military police camp houthi-controlled yemeni capital sanaa wednesday kill least 39 people wound 90 include prisoners official witness say strike part air campaign western-backed coalition iran-allied houthis escalate since houthis crush uprise last week lead former yemeni president ali abdullah saleh kill one official camp say coalition aircraft launch seven raid camp locate eastern part sanaa 180 prisoners hold official say rescue team pull 35 body rubble rest account late string air raid coalition conduct sanaa part country sometimes cause multiple casualties among civilians spokesman saudi-led coalition could immediately reach comment report coalition deny target civilians unite state britain provide political back well weapons logistical support saudi-led coalition fight since 2015 restore yemen internationally-recognised president abd-rabbu mansour hadi power least 39 yemenis dead saudi-led raid police camp sanaa official