AlQa'dah 23, 1434, Sep 29, 2013, SPA -- A Syrian government air raid struck a high school in a rebel-held city in the country's north on Sunday, killing at least 12 people, most of them students, activists said, according to AP. The airstrike took place in the city of Raqqa, which is located on the Euphrates River and is the only provincial capital under rebel control in Syria's civil war, the Britain-based Syrian Observatory for Human Right said. The attack appeared to hit the yard in front of the school early Sunday morning, which is the first day of the work week at public schools in Syria. Observatory director Rami Abdul-Rahman said at least eight of the dead were students, and that the death toll is likely to rise because many of the wounded are in critical condition.