An Israeli strike killed at least 30 Palestinians and wounded 50 others who were sheltering in a post office in the central Gaza Strip, bringing the death toll in the enclave to 66. With no sign of a let-up in the 14-month-old conflict, the strike hit a postal facility in Nuseirat camp where displaced families had sought refuge and also damaged several nearby houses, medics told . The Israeli military did not immediately respond to a request for comment.