Witnesses and officials in Yemen say a Saudi-led air strike hit a public bus on a highway north of the southern city of Aden, splitting the vehicle in half and killing at least 20 civilian passengers.
They said Thursday that air strikes also hit a family travelling in a private car and a farmer driving a pick-up truck loaded with potatoes, also near Aden, over the last 48 hours.
A senior military official running an operations room in Aden allied with the Saudi-led coalition said he complained to the Saudis about the incidents.
The officials and witnesses spoke on condition of anonymity for fear of reprisal.
Houthi rebels seized the Yemeni capital last year. A Saudi-led coalition has waged an air campaign against the rebels since March 26 in an effort to restore the authority of exiled President Abd-Rabbu Mansour Hadi, who has fled to Riyadh.
