"Two bulldozers are engaged, the demolition work is in progress, it is being done by security forces, including troops," a police official on the spot told AFP by telephone on condition of anonymity. "I am on security duty, I can see dust is coming out of the building," the official said. Police have been deployed at the outer cordon and army troops are around the compound, manning the inner cordon, he said. "We have received orders to be here," another police officer, Sameen Jan, said, confirming that the "compound is being demolished." Witnesses said troops blocked access to the compound, brought heavy machinery and barred journalists from taking pictures or coming close to the site.