The security forces have nabbed around 1,000 suspects during search operation in Swat on Monday, a private TV reported Security forces have imposed curfew in Mingora for an indefinite period. The house-to-house search operation is on in Navay Kali, Angro Dheri and Yousuf Abad. The other day a 20kg bomb has been seized in Navay kali, which was defused.