Officials in southern Afghanistan say at least four people have died and more than 30 were wounded in twin blasts Saturday at an agricultural show, held as part of traditional New Year's celebrations.

The explosions happened in Lashkar Gah, the capital of volatile Helmand province.

Witnesses of the attack said that first, a small explosion happened inside a tent in the stadium. People then started to run toward the gates when a second blast hit the crowd.

Helmand Governor Mohammad Yasin reportedly was knocked down by the explosion, but suffered only superficial injuries.

There has been no immediate claim of responsibility, although the Taliban frequently carries out similar attacks.