Bannu- At least three people have been killed in a clash between two groups in Town Ship Area in Bannu today morning, said the officials. According to the police, a conflict started today morning where two different groups have started firing on each other. Due to the firing, three people have been killed, while the attackers succeeded to flee from the spot, the police said. The police also added that the area has been cordoned off for the search of the attackers. The dead bodies have been shifted to nearby hospital for medico-legal formalities.