QUETTA: Quetta police on Monday arrested two key members of the banned Balochistan Liberation Army and also registered a case against Dera Bugti Nazim Kazim Bugti and Jamhoori Watan Party General Secretary Agha Shahid Bugti. "BLA activists Amir Hamza and Bakhtiar Bugti are being interrogated and we hope to extract important information from them," a police source told Daily Times. The detainees were involved in rocket attacks, bomb blasts and other violent acts, said the source. The police also registered a case against Kazmi Bugti and Shahid Bugti in Bijili Road police station for a rocket attack that killed a woman and injured seven men.