Rockets into Saudi Arabia, reported air strikes in Yemen strain truceSANAA (Reuters) - Yemen's dominant Houthi movement launched Katyusha rockets into Saudi Arabia on Sunday and residents reported Saudi-led air strikes in a Yemeni border province in exchanges that threatened to derail a 48-hour truce. The Houthis said the rocket salvo targeting a military base in the kingdom's southern Najran province was launched in response to Saudi shelling on Yemeni border vill
