Fighting rages in Yemen as UN seeks to extend 72-hour ceasefire

By Mohammed Ghobari and Katie Paul SANAA/NAJRAN, Saudi Arabia (Reuters) - Saudi-backed government forces and Iran-allied Houthis in Yemen accused each other of violating a ceasefire on Saturday as the United Nations tried to extend the three-day truce. Ground fighting has raged largely unabated despite the truce, but air attacks on the capital, Sanaa, have stopped and there were fewer Houthi missile strikes on Saudi Arabia, residents and local officials said. A Saudi-led coalition backing the ex