Security forces arrested 10 suspected militants in an operation against Al Qaeda elements in North Waziristan Agency on Sunday, the Inter-Services Public Relations director general told Daily Times. Maj Gen Shaukat Sultan said the 10 suspects were arrested with heavy weapons. "I can't say whether they are foreigners or locals as they are being interrogated at the moment," he added. Two security personnel were injured by a "smoke grenade", he said, adding that no exchange of fire took place between the security forces and suspected militants.The search operation was conducted in Mana village of the Shawal area, west of Miranshah, after the presence of foreigners at the village was reported, the ISPR director general said. Witnesses said military helicopters hovered over the area but they did not hear any gunshots. Sunday's operation against Al Qaeda-linked militants believed to have fled to North Waziristan Agency after being flushed from South Waziristan Agency last year was the second since March 5. "There will be more such operations to flush out militants from the region," Brig (r) Mehmood Shah, security chief of the tribal agencies, said.