A suicide bomber has detonated explosives strapped to his body at a sports field in northern Afghanistan, killing three and wounding 38. The governor of Faryab province, Abdulhaq Shafaq, said the attack took place in Shirin Tagab district during a buzkashi game, a traditional sport involving grabbing a dead goat or calf from the ground while riding a horse at full gallop.The governor also said that some of the wounded were in critical condition, and the death toll might rise. There was no immediate claim of responsibility by Taliban or other armed insurgent groups.