QUETTA: A number of schools, including at least two girls' schools, closed down in Quetta after receiving threatening letters from the Tehrik-e-Taliban on Saturday.
Security was also beefed up in parts of the provincial capital and in Mastung, reported a private TV channel.
Some of the letters threatened that if purdah was not observed in schools, then teachers and administrative heads will have to bear the consequences.
Similar letters threatening against wearing 'western' clothes were also sent to schools in Mastung.
The letters warned the school managements with the presence of informants among the students and the staffers and threatened severe consequences in case of non-compliance.