DAMASCUS — Three Syrian regime forces were killed and several others injured when a car exploded Syria’s Daraa city, a war monitor reported on Sunday. This comes after a group of unidentified gunmen stormed the house of a former leader of one of the regime’s factions and opened fire, killing five people, the Syrian Observatory for Human Rights said. Attacks in the Syrian city have been on the rise, according to the monitor, several of which have been carried out by using exploding devices. More than 589 attacks have been carried out since last June, in which over 393 people, including 104 civilians, were killed, the monitor said. — Agencies