Saturday’s cease-fire negotiations ended with no developments, a senior Hamas source close to the Cairo talks told CBS News. The source added that “tomorrow, a new round will begin.”Israel said it would not send a delegation to the talks until Hamas replies to Israel’s latest proposal. An adviser to Israeli Prime Minister Benjamin Netanyahu told CBS News Saturday that “the end of the war will come with the end of Hamas in Gaza.”CIA Director William Burns traveled to Cairo, Egypt, Friday for the talks, two U.S. officials and a source familiar with the matter told CBS News. The visit follows a stretch of technical talks and a fresh proposal from Israel that U.S. officials have described as “generous.”