DAMASCUS, Syria (AP) - A power outage plunged Damascus and southern Syria into darkness late Saturday, Syria's state news agency said, while anti-regime activists reported a string of tit-for-tat, sectarian kidnappings in the country's north. The news agency, SANA, quoted Electricity Minister Imad Khamis as saying that the failure of a high voltage line had left the country's south without power. The blackout affected Syria's capital, Damascus, and the southern provinces of Daraa and Sweida, which abut the Jordanian border. An Associated Press reporter in Damascus reported dark streets across the capital. A fuel shortage makes it hard for residents to run backup generators. A similar blackout struck Damascus and southern Syria on Jan. 20, leaving many residents with no way to heat their homes on a cold winter night. The government blamed that outage on a rebel attack, and power was restored to most areas the following day. The Syrian capital's 2.5 million residents have grown used to frequent power cuts as the country's conflict has damaged infrastructure and sapped the government's finances. Meanwhile, anti-regime activists reported a string of kidnappings in recent days that have enflamed tensions between Sunni and Shiite Muslim villages that back opposite sides in the country's civil war. The activists differed on the number kidnapped from both sides, with reports ranging from a few dozen to more than 300. The kidnappings point to the dark sectarian overtones of Syria's civil war, which pits a predominantly Sunni Muslim rebellion against a regime dominated by President Bashar Assad's minority Alawite sect, an offshoot of Shiite Islam. The kidnappings took place between two Shiite villages in the northern Idlib province and a number of Sunni villages that surround them. The Britain-based Syrian Observatory for Human Rights said 42 Shiites, including mainly women and children, were snatched Thursday from a bus that was traveling from the Shiite villages of Foua and Kfarya to the capital Damascus. Observatory director Rami Abdul-Rahman, said it was not clear who took them, adding that Shiites have refused to give the names of those kidnapped or details about the make or color of the bus. Since then, however, Shiite gunmen from the two villages have kidnapped more than 300 people from nearby Sunni villages, Abdul-Rahman said. The kidnappings highlighted how much the civil war has heightened sectarian tensions. Kidnapping for ransom has grown common across Syria since the crisis began in March 2011, but sectarian and political abductions have been rare. Anti-regime activists in Idlib reached via Skype confirmed the kidnappings, but gave much lower numbers for the number of people involved. Activist Fadi al-Yassin Al-Yassin said Foua and Kfarya are being used by the regime to bombard nearby villages and towns, saying the regime has turned them into "castles of shabiha," referring to pro-government gunmen.