KARACHI - Army troops remain on standby position and alerted at all the sensitive installations across Karachi to avert any possible backlash of the ‘Operation Zarb-e-Azb’ against the local and foreign terrorists in North Waziristan. Security has been beefed up across the City and army troops will assist the civil administration on security issue at all sensitive installations. ISPR spokesman Major Waheed Bukhari when contacted said army troops are remain alert and would respond immediately on the call of civil administration. He said the rangers and police were responsible for the law and order situation but the army was on standby position which would respond for the assistance of the law enforcement agencies in case of emergency. On the other side, witnesses said massive movement of paramilitary troops has been seen across the city and troops have been taking positions nearby all the sensitive installations.Following the military operation in North Waziristan, the Sindh government on Monday imposed Section 144 in the City that will prevent political parties from arranging processions and demonstrations.Under Section 144, gathering of more than five people would be banned, however, religious meetings and funerals will be an exception.Monitoring adds: The Civil Aviation Authority (CAA) has suspended porter service at airports across Pakistan and has inducted the porters in the vigilance department. A media report quoted sources as saying that porter service will be available for aged and disabled passengers, however regular passengers will not be provided porter service for some time. Additionally porter service provided by private airlines to their passengers will continue to function.This news was published in The Nation newspaper. Read complete newspaper of 17-Jun-2014 here.