Heavily-armed gunmen opened fire and tossed grenades near the Old Terminal of Karachi Airport in Pakistan's largest city, GEO TV reports.
Journalist Ali Kamran Chishti reports that there are three confirmed deaths among the local Airport Security Force (ASF).
All flights have been suspended. A firefight between the attackers and security personnel followed the initial attack.
Pakistan media reported between four and 10 gunmen who used forged identity cards to infiltrate the terminal.
This is a developing story. More to come.