Hundreds gathered in Syria's Druze heartland on Friday to demand the withdrawal of government forces after deadly sectarian violence last month and the opening of an aid corridor from neighbouring Jordan.
Suweida province has seen tough humanitarian conditions since week-long clashes killed thousands in July.
The United Nations says more than 175,000 displaced people have yet to return to their homes.
The violence initially pitted Druze fighters against local Sunni Bedouin tribes but rapidly escalated, drawing in Syrian government forces as well as Israel, which bombed them.
The interim government said its forces intervened to stop the clashes, but witnesses from Druze factions.
Dozens of protesters, including women and children, gathered in a main square in Suweida, holding placards calling for the opening of a humanitarian corridor from Jordan, an AFP photographer said.
Similar protests were reportedly held in other Druze towns, according to the Observatory, a Britain-based monitoring group.
The government has deployed forces to several parts of Suweida province, but not to the provincial capital.
Residents accuse them of imposing a blockade, a claim the government has denied, instead blaming "outlaw groups", in reference to Druze fighters.
Activist Rawan Abu Assaf said protesters' demands included "lifting the blockade imposed on Suweida province and the withdrawal of government forces from all its villages".
UN humanitarian coordinator Adam Abdelmoula said on Thursday that the United Nations and its partners had sent a new convoy to Suweida province, with 40 trucks carrying "a broad range of life-saving assistance" including food, water and medical supplies.
He called it "a significant step toward expanding access and scaling up the humanitarian response in affected areas of southern Syria".