<span style="color: #222222;">In the US, a woman was killed and three others injured after a gunman opened fire at a synagogue in California. The gunman was arrested after the attack in the town of Poway. </span><br />'' <br />'' <span style="color: #222222;">According to reports, the synagogue had been hosting a Passover celebration when the gunman burst in.</span><br />'' <br />'' <span style="color: #222222;">The shooting came exactly six months after a white supremacist shot dead 11 people at Pittsburgh's Tree of Life synagogue. </span><br />''