Rocket alarms have been triggered once again in several areas in central Israel and in the coastal metropolis of Tel Aviv, the army said on Saturday. The warning sirens in Tel Aviv sounded in response to a projectile from Yemen, it said. The projectile was intercepted before reaching Israeli territory, the same source revealed shortly afterwards. In Tel Aviv, the rocket alarm was last triggered on Thursday night when the Houthi militia in Yemen fired a rocket at the city. This projectile was also intercepted by the Israeli missile defence system. The Houthis assert they are acting in solidarit…