But this was the first major militant attack on a Muslim mosque, and the startling bloodshed eclipsed any past attacks of its kind, even dating back to a previous insurgency in the 1990s. The militants opened fire from four off-road vehicles on worshipers inside the mosque during the sermon, blocking off escape routes from the area by blowing up cars and leaving the burning wrecks blocking the roads. Victims including some 130 wounded were rushed to local hospitals, said police. No one claimed responsibility immediately following the attack, but ISIS has targeted Sufis several times in the area in the past, notably beheading a leading Sufi religious figure, the blind sheikh Suleiman Abu Heraz, last year and posting photos of the killing online. (More mosque stories.)