Complex sentence: ISI has been actively involved in suppressing a bloody Separatist Insurgencies in Balochistan since, which recently the Militants have been accused of targeting people non-Balochi ethnic groups and Balouchi who do not agree with separatism.
Split into simpler sentences: ISI has been actively involved in suppressing a bloody separatist insurgency in Balochistan. Recently the Militants have been accused of targeting people of non-Balochi ethnic groups and Balouchi who do not agree with separatism.