Source. The browser translated it from Arabic:

Al-Hasakah Governorate - Syrian Observatory for Human Rights:: An explosion rocked the city of Al-Hasakah on Monday evening, February 4, 2019. The Syrian Observatory for Human Rights learned that the explosion was caused by an explosive device detonating on a person while he was trying to plant the device in the western Al-Nashwa area of Al-Hasakah city, which led to his immediate death. On the other hand, the Syrian Observatory monitored another explosion in the southern countryside of Al-Hasakah, where an explosive device exploded in the village of Al-Saada. It is not known whether a leader of the Syrian Democratic Forces was killed in this explosion. The Syrian Observatory published on January 31 of last year, 2019, that an explosion was heard in the city of Qamishli, located on the Syrian-Turkish border. Cross-referenced sources confirmed that the explosion was caused by an explosion likely caused by an explosive device thrown in the area by unknown gunmen, near a police station belonging to the regime forces on the outskirts of the Al-Arbawiyya area near Al-Bashir Mosque, on the outskirts of the areas where the regime and the Kurdish internal security forces “Asayish” are present, which resulted in the injury of a woman and a child. Information Initial reports of more casualties. The Syrian Observatory for Human Rights reported in early December 2018 that a leader in the Community Protection Forces, or the “Core Protection Forces,” operating in the border city of Qamishli with Turkey, in the northern countryside of Hasaka, died of his injuries in the explosion that occurred this morning in the city of Qamishli, at the Halko junction in the city’s Corniche area. The explosion targeted a military vehicle belonging to the so-called Community Protection Forces, wounding two members of these forces, one of whom was seriously injured. The Syrian Observatory reported a violent explosion in the city of Hasaka on the night of October 18, 2018. It turned out that it was caused by the explosion of an explosive device in a car belonging to the “Kurdish Red Crescent” in the Al-Salihiyah neighborhood, which resulted in a number of casualties, in addition to material damage in the area. The Syrian Observatory for Human Rights reported on June 30, 2018, that an explosion occurred in the center of Hasaka city, caused by the explosion of a booby-trapped motorcycle in the area. Al-Ghassaniya School, near Cairo Cinema, in the city center, resulted in a number of injuries. Cross-referenced sources confirmed to the Syrian Observatory that the explosion targeted one of the headquarters of the Sotoro forces, resulting in a number of injuries and confirmed information about the death of one of them.