Iranian-backed Houthi rebels in Yemen blew up a house Tuesday in a town southeast of the capital, Sanaa, killing at least nine people from the same family, officials and residents said. This came a day after two Houthi fighters were killed in an ambush allegedly set up by the house’s owner, Ibrahim al-Zalei. The deceased — a set of parents and their seven children — were killed in the explosion, according to residents Ahmed Baydawy and Arman Mahmoud. Rescuers and civilians were trying to pull out others buried under the rubble, they said. Baydawy and Mahmoud said the Houthis besieged the house…