The army arrested Lebanese nationals Youssef Mohammed al-Fleity and Omar Abdul Mawla al-Atrash, who are suspected of involvement in an Aug. 22 rocket attack on northern Israel. Two Saudi nationals who were arrested and interrogated by Hezbollah in Beirut have been released after the Saudi ambassador interceded for them. Security is being stepped up around mosques in Beirut and elsewhere. Israeli military aircraft have been flying over Lebanese airspace more frequently in recent days.