Yemen’s Saudi-backed government and southern separatists signed an agreement on Tuesday to end a power struggle in the south of Yemen, Reuters reported.

No details were given, but sources said the deal calls for a government reshuffle to include the separatists’ Southern Transitional Council (STC) and placing tens of thousands of its troops under government control.

Separatist forces, supported by Riyadh’s main coalition partner, the United Arab Emirates, are part of the Sunni Muslim alliance that intervened in Yemen in March 2015 against the Houthis, who control Sanaa and most urban centers.

The STC, which seeks self-rule in the south and a say in Yemen’s future, turned on the government in August, trying to extend its reach in the south.