Paramilitary forces and tribal police, backed by army commandos, searched suspected houses for foreign terrorists in North Waziristan but made no arrests or seized any weapons, a military official said on Thursday. However, Online news agency, while quoting South Waziristan Assistant Political Agent Mohammad Jamil, reported that the forces had arrested eight suspects but there was no foreigner among them. The official told Daily Times that around four suspected houses were searched in Edderkhel village near Mir Ali town after intelligence agencies tipped off security forces about the presence of foreign terrorists linked to Al Qaeda. "The search operation was peaceful," Pakistan Army Brigadier Shahjehan told Daily Times. "We got a tip-off and a search operation was ordered in early hours of Thursday," he said but gave no details. Sources in Mir Ali said that around 400 army commandos and paramilitary Frontier Constabulary personnel surrounded the suspected houses at around 3:00am on Thursday but the occupants declined to allow the search of their houses demanding female personnel to lead the search.