A salvo of small rockets hit Afghanistan's southern city of Kandahar on Thursday, the provnincial governor said, as Afghans prepared to vote in a tense presidential election Taliban militants vow to disrupt, Reuters reported.

"Yes, rockets have landed," provincial governor Tooryalai Wesa told reporters after casting his vote at a polling station in the town. A Reuters reporter in the town heard two blasts on its outskirts just before polls opened, and two security sources said four people were injured.