Four persons died after a mysterious blast took place in north Kashmir’s Sopore afternoon on Monday officals said.0. mysterious blast took place at Shair Colony sopore. The deceased has been identified by the officals as Nazir Ahmad Nadroo a resident of Sheir Colony, Azam Ashraf mirĀ a resident of Shair Colony, AdilĀ Rashid Bhat and Abdul Rashid Bhat