BEIRUT (AP) — Activists say Syrian rebels are clashing with government troops in the Golan Heights near the border with Israel, where al-Qaida-linked insurgents abducted U.N. peacekeepers last week. A day later, fighters from al-Qaida's Syria branch, the Nusra Front, abducted 45 Fijian peacekeepers who serve in the U.N. mission that monitors the buffer zone between Israel and Syria.