The sources say that the joint forces took control of Tiyeglow without résistance after the Al-Shabab militants withdrew from the town.
Earlier this month, Al-Shabab militants had captured Tiyeglow after Ethiopian forces under AMISOM vacated the town.
Al-Shabab is fighting to topple the government in Mogadishu, the battle between the Somali government and the militants continued since 2006.