There is lot of discussion going on about recent Mastung carnage in which 22 pashtuns were killed by United Baloch army in Mastung. On a Baloch nationalist site, i found this quote,
"However, there’s definitely more to it than what meets the eyes in the Mastung carnage. A saying among Baloch and Sindhis goes the Pashtun wines and dines with the Punjab, that is shares power and perks with the Punjab, but whines with the Baloch and Sindhis, that is acts as an oppressed nation and cries for rights. According to Baloch politicos the biggest beneficiary of a free Balochistan would be Pashtuns – or Pakhtuns as they are called in the north. The main reason is compared to Baloch, Pashtuns have better education and a more aggressive spirit of enterprise, but they seem to have contented themselves to play the role of Punjab’s second fiddle and watchmen in Balochistan for quite some years. "
Pashtun killings in Mastung: separating facts from fiction - by Ahmar Mustikhan - Newsvine
While many are blaming ISI for this , it is clearly carried out by a faction of baloch rebels who have a great deal of animosity towards Pashtuns of Balochistan over distribution of resources, Afghan refugees, FC etc. The Quote in the title explains why Baloch rebels would turn against Pakhtuns. If these ethno-fascists can kill Punjabis and hazaras, then why not Pakhtuns who dines with Punjab according to them. Beside this is not the first incident, in the past pashtun laborers were executed by BLA and BRA in insurgency hit areas
UBA is split away faction of BLA run by Mehran Marri