Lebanon's prime minister has hinted he might resign after violent protests against government corruption and political dysfunction focused on a monthlong trash crisis.

Tammam Salam said in a news conference that security forces who used force against protesters will be held accountable and that the right to demonstrate is protected by the constitution.

Salam told the protesters he is ready to have a dialogue with them, as around 100 protesters chanted "leave, leave."

Salam's comments on Sunday came a day after police firing tear gas, rubber bullets and water cannons battled thousands of protesters in downtown Beirut.

The clashes wounded dozens of protesters and police.

Salam said that if next Thursday's Cabinet meeting is not productive, "then there is no need for the council of ministers."