Home secretary Arif Ahmed Khan presided over a meeting in this regard. The meeting decided to undertake search operation in various badly affected areas after clamping curfew in the areas.
However, the sources said the Pak Army is not being sought to take responsibilities for the purpose.
Meantime, the sources said, the decision is not final, as Sindh Home Minister Zulfiqar Mirza is not in the city.
The sources said the curfew may span a few hours.
The meeting was told that at least 105 people were arrested until October 16 along with 60 arms. And they are being interrogated.