"The diplomatic break with Iran, and rupture with Lebanon, came after the Saudi execution in January of Sheikh Nimr al-Nimr, a dissident Shia cleric. Riyadh reacted after the Saudi embassy in Tehran and consulate in Mashhad were attacked by mobs. Lebanon’s foreign minister, a Hizbollah-aligned Christian, declined to condemn the events — acting as more papist than the Pope given that the Iranian government itself did so." In fact, the Lebanese foreign minister repeatedly condemned the attacks on Saudi embassy and consulate in Iran, but he refused to categorize Hizbullah as a terrorist organization. That was the tiff.