DUBAI—Iran on Saturday condemned U.S. air strikes against Iran-backed militias in Syria, and denied responsibility for rocket attacks on U.S. targets in Iraq that prompted Friday’s strikes. Washington said its strikes on positions of the Iran-backed Kataib Hezbollah paramilitary group along the Iraq border were in response to the rocket attacks on U.S. targets in Iraq. Western officials and some Iraqi officials have blamed those attacks on Iran-backed groups. However, Tehran has denied any involvement. Iranian Foreign Minister Mohammad Javad Zarif on Saturday condemned the U.S. strikes as “illegal and a violation of Syria’s sovereignty” in a meeting with his visiting Iraqi counterpart Fuad Hussein, Iran’s state media reported. “Zarif said some recent attacks and incidents in Iraq are suspect, and could be designed to disrupt Iran-Iraq relations and Iraq’s security and stability,” the media reports said. “We emphasize the need for the Iraqi government to find the perpetrators of …