Tens of thousands of people remained displaced by the violence and the United Nations has been unable to bring in much-needed humanitarian and medical aid because of ongoing clashes.

Clashes that shook southern Syria this week have killed hundreds of people, including civilians, and drawn in an array of both local and international players, harking back to the dynamics of the country’s nearly 14-year civil war.

DAMASCUS, Syria — Renewed clashes broke out overnight between Druze armed groups and members of Bedouin clans in southern Syria, and government forces were preparing to deploy again to the area Friday after pulling out under a ceasefire agreement that halted several days of violence earlier this week, officials said.