SANAA, Yemen (AP) — Yemen’s top security body imposed an overnight curfew in restive areas of the capital, Sanaa, on Saturday after Shiite rebels took over the state television building amid heavy clashes and the U.N. envoy to the country signaled that a deal had been reached to end the violence.

The Supreme Security Commission said the curfew was being imposed in the north and west of the capital and will remain in place indefinitely. It follows days of clashes between Shiite rebels, known as Hawthis, and Sunni militiamen affiliated to the Muslim Brotherhood’s Islah party that have left more than 140 dead and prompted thousands to flee.