NEW : 50 people were killed in the suicide attack , local officials say . At least 25 were killed in the attack , the police spokesman says . The district chief of Sai Baba was among those killed . No claim of casualties yet , but many such casualties come from the Taliban , a spokesman says .
NEW : 50 people were injured in the suicide attack , local officials say . At least 25 were killed in the incident , the police chief says . The district chief of Dor Baba was among those injured . No claim of responsibility yet , but many such attacks come from the Taliban , a report says .