Reuters, Beirut :A two-day ceasefire between warring sides in Syria came into force on Thursday in a rebel-held town near the border with Lebanon, and two Shi’ite villages in the northwest, the UK-based Syrian Observatory for Human Rights said.It is the second ceasefire in a month in these areas between the Syrian army and the Lebanese group Hezbollah on one hand, and Syrian insurgents on the other. The ceasefire came into force at 6 a.m. (0300 GMT).Sources close to negotiations on both sides earlier told Reuters agreement had been reached on a new ceasefire in the town of Zabadani and the two villages of Kefraya and al Foua in the northwestern province of Idlib.”Implementation has started. There is calm in Kefraya, al Foua and Zabadani,” Rami Abdulrahman, who runs the Observatory, told Reuters.The negotiations have been led on the insurgent side by Ahrar al-Sham, a conservative Sunni Islamist insurgent group. The ceasefires are in the western portion of Syria, beyond the main strongholds of Islamic State fighters.A similar ceasefire this month in the same areas, organized with help from Iran and Turkey, broke down after a brief extension, and fighting has raged since.A fighter on the side of government forces in Zabadani said clashes had intensified prior to the latest planned ceasefire.The previous ceasefire, which began Aug. 12, was intended to give a chance for negotiations aimed at a more lasting cessation of hostilities in both areas.Iran and Turkey back the Syrian government and insurgents, respectively.That ceasefire also aimed to secure the withdrawal of rebel fighters from Zabadani and of citizens from the two villages.