Two important militants' commanders were killed during exchange of firing with Security Forces at Tehsil Matta in troubled Swat district on Sunday. A spokesman of Swat Media Centre said that militants commander Ayub and Amir Zaib were killed when they challenged the security forces in search operation in Sambut in Tehsil Matta. Meanwhile, a remote controlled bomb hit a convoy of security forces in Swat, however, no casualty has been reported.