Additional police have been deployed in urban centres and entry points to Peshawar, officials say.
Pakistan expressed concern about the growing Iranian aggression across the border and disregard for international law.
At least 33 people were injured in aerial firing in celebration of Pakistan's cricket victory June 18.
Military operations have contributed to a decline in terrorist attacks on mosques, down from a peak of 18 in 2012 to none this year.
The force now has 14 armoured personnel carriers and 61 armour-plated patrol vans to ensure the safety of police fighting terrorism.
The Safe City Project, utilising 1,950 closed-circuit television cameras throughout the city, aims to rid the capital of crime and to keep a vigilant eye on terrorists.
An intelligence-based operation led security forces to a cave in Mastung District, where they killed at least 12 key ISIS commanders plotting attacks on Pakistan, according to officials.
Operation Radd-ul-Fasaad effectively stopped a surge in terrorist violence in February, data shows.