Security footage from a stock exchange in Karachi, Pakistan shows a militant attacking the entrance of the building, Monday, June 29.
READ MORE: Pakistani security forces say they have killed four assailants who attacked the Pakistan Stock Exchange building in Karachi.
Three security forces officers were killed and seven people, including three police officers were injured in the gunfire.
The attackers entered the Exchange compound Monday morning after opening fire with guns and grenades.
Authorities say the attackers never entered the trading building.
The Baluchistan Liberation Army has claimed responsibility for the attack in social media posts.