Originally posted by the Voice of America. Voice of America content is produced by the Voice of America, a United States federal government-sponsored entity, and is in the public domain. Powerful Islamist Group Intensifies Crackdown on Jihadists in Syria's Idlib Sirwan Kajjo WASHINGTON - A powerful Islamist militant group in the northwestern Syrian province of Idlib has launched a military campaign against rival jihadist groups, local news reports and rights groups said Sunday. Hayat Tahrir al-Sham (HTS), the dominant force in Idlib, the last major rebel stronghold in Syria, on Sunday began targeting villages in the western part of Idlib where jihadists have significant presence, according to the Syrian Observatory for Human Rights. The Syrian Observatory, which monitors war developments in the country, said HTS fighters raided the village of Arab Saeed in Idlib, arresting several jihadist militants, including a leader with the Hurras al-Din group. Hurras al-Din is one of several jihadist factions that have been operating in northwestern Syria. The group is al-Qaida's main affiliate in the war-torn country. Before formally severing ties with the global jihadist group in 2016, HTS was regarded as the Syrian branch of al-Qaida. At the time, it was known as the al-Nusra Front. The crackdown comes nearly two weeks after several jihadist groups, including Hurras al-Din, announced the formation of a joint operations room to coordinate efforts in the fight against Syrian government troops and allied forces. A local administration in Idlib backed by the HTS issued a statement Sunday, saying no armed groups are allowed to operate in the city of Idlib, except for those affiliated with the HTS. Neutralizing extremists The Syrian Observatory said the fighting Sunday between HTS and Hurras al-Din forced the latter to agree to a cease-fire that required the jihadist group to evacuate its headquarters and withdraw from certain parts of Idlib. Rami Abdulrahman, director of the Syrian Observatory, charges that the ongoing crackdown by HTS against other extremist groups in the restive province has been approved by the Turkish military. .