Critics ask why the response to Hezbollah supporters has been so muted.
French Foreign Minister Barrot meets Lebanon's leaders on arrangements once the UN force leaves.
The pledge sidesteps a framework that aims to keep reconstruction funds away from armed groups.
Saeed Khatibzadeh's remarks in Beirut were seen by Lebanese sources as interference in the country's affairs.
The US-hosted military meeting on 20 October comes as Israel reinforces its forces on the border.
The Speaker says Lebanon has complied with Resolution 1701 and urges pressure on Israel.
After two nights of tension in Beirut, the PM backs the army and calls for everyone involved in moving illegal arms to face the courts.
Lebanon's top diplomat demands an end to Iranian interference as the weapons crisis deepens.
Lebanon will welcome "any arrangement" that keeps an international presence after the UN mandate ends on 31 December.