Red Cross says many children under 15 dead and wounded after air raid blamed on Saudi-UAE coalition hits bus in Saada.
The vehicle came under attack as it was driving near a crowded market in the Houthi-controlled province of Saada, which borders Saudi Arabia, the International Committee of the Red Cross (ICRC) said on Thursday.
In a separate Twitter post, Johannes Bruwer, the head of an ICRC delegation in Yemen, said that "according to local officials a total of 50 people died and 77 were injured this morning.
"Of these, the ICRC hospital in Al Talh received 30 dead and 48 injured, of which the vast majority were children."
Al Jazeera's Mohammed Adow, reporting from neighbouring Djibouti, said this latest attack was going to enrage Yemenis who are already aggrieved over the rising civilian death toll.
"The Saudis tend to deny these kinds of actions, which have sadly become all too common," he said. "It's all too rare for either party [the alliance or the Houthis] to take responsibility".
Jolien Veldwijk, the acting director of Care International, told Al Jazeera that at least "five very intense air strikes" targeted densely populated areas of the capital.