Four people, including two policemen, were shot dead on Wednesday in two separate incidents of violence, triggering a severe reaction by local businessmen, who shut down their businesses in protest against the killings. According to details, unidentified men shot dead two policemen on QuettaÂ’s Sariab Road. Policemen Noor Ahmed Shahwani and Muhammad Nasir, and passerby Abdul Karim died. The Balochistan Liberation Army claimed responsibility for the attack. In another incident, armed men broke into a garage in Satellite Town, killing a businessman, Sardar Muhammad, and injuring three others. Sources said the attackers had come to rob the people, and shot them when they resisted.