A US drone strike in south Yemen today killed five members of Al-Qaeda and three civilians in the Al-Said area of Shabwa province.<br/>'<br/>The security official said, the vehicle targeted was carrying five suspected Al-Qaeda members, all of whom were killed by a missile.<br/>'<br/>The official said, three civilians who went to their aid were killed when a second missile struck. <br/>'<br/>Washington has sharply intensified its air war against the jihadists since President Donald Trump took office in January.<br/><br/>