German leaders called for de-escalation and urged restraint on Sunday following Iran’s overnight attack on Israel, amid fears Tehran’s move could spark a wider conflagration in the Middle East. Chancellor Olaf Scholz warned while on a visit to China against any further escalation. “Things must not continue in this way,” Scholz said in Chongqing. “We will do everything we can to avoid further escalation.” Scholz termed the Iranian attack “absolutely unjustifiable” and added that it was in no way acceptable, understandable or tolerable. “All we can do is warn everyone, especially Iran, against c…