BEIRUT – Hezbollah, Lebanon’s most powerful faction, on Monday demanded to know who was behind shooting that killed eight opposition supporters in some of Beirut’s worst street violence since the 1975-90 civil war.

RIYADH – Hamas leader Khaled Meshaal met Saudi officials in Riyadh on Monday as part of a Saudi bid to mediate the return of Gaza, under Israeli blockade, to Palestinian Authority control, Saudi and Palestinian officials said.

Lebanon has been going through the worst political crisis since the 1975-90 civil war. The country has been without a president since November as leaders of its rival factions are unable to agree on a national unity government.