Government forces in South Sudan have regained a northern town held by rebels loyal to former vice president Riek Machar.<br /><br />They have recaptured Bentiu, in Unity state, which is an important oil producing region.<br /><br />And the president's spokesman says the government might use the airforce and regional troops to make further gains, if necessary.<br /><br />Al Jazeera's Haru Mutasa reports from Unity State.
