Many more were critically injured . More than 40 were killed in clashes across Syria , observers say . The Syrian Observatory for Human Rights said at least 30 people died on Friday and Saturday when security forces fired into the air to disperse a protest against President Bashar Assad that had been called by activists who have overnight , according to opposition activist group . Attacks mark increase in activity in Raqqa , which ISIS had made its de facto capital .
More than 40 were killed in clashes across Syria , observers say . The Syrian Observatory for Human Rights said at least 30 people died on Friday and Saturday when security forces fired into the air to disperse a protest against President Bashar Assad that had been called by activists who have overnight , according to opposition activist group . Attacks mark increase in activity in Raqqa , which ISIS had made its de facto capital .