Alex Smith's touchdown has edged the Kansas City Chiefs ahead at half-time of their clash against the Houston Texans, holding a 14-10 lead at the interval.

Houston were first to get on the scoreboard at the Arrowhead Stadium, with Randy Bullock making a 48-yard field goal.

Kansas responded with a sustained drive upfield, which led to Jamaal Charles crossing the line from close range for the opening touchdown.

Houston came roaring back and scored a touchdown of their own with the first play of the second quarter when Case Keenum found Deandre Hopkins with a precise 29-yard pass.

With time running out in the first half, Kansas got into a scoring position thanks to patience from Smith, with the quarterback finishing things himself by finding the end zone to give the Chiefs a four-point lead at the break.