Loud gunfire, explosion in Karachi; Rangers HQ under attack in Pakistan's biggest city?

An explosion and gunfire have been reported near the Pakistan Rangers headquarters in Karachi, triggering a major security response in one of the city’s sensitive zones. Local media say police and rapid response units rushed to the scene, while security forces quickly cordoned off the surrounding roads. In this video, we piece together what is known so far and examine what this incident could mean for security in Karachi and Pakistan more broadly.