A screengrab showing one of the madrassas that was raided.
The madrassas reportedly belonged to Qazi Hamidullah Khan - a teacher of Taliban supreme leader Mullah Omar.
SHOs from 30 police stations headed by the SP raided the seminaries.
The nationality and the names of the foreigners could not be ascertained. The madrassas records are being checked and tallied.
Police said that the arrested suspects were able to speak Urdu but could not speak Pashtu.
The security officers are investigating how and when these foreigners arrived in Pakistan and under which visa. According to the law, if a person is not a Pakistani national, they cannot study in the country without official registration.
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