Pakistan officials have closed down Karachchi International Airport after the terrorist attack.
Following the announcement of the closure, SriLankan Airlines said Karachchi-bound Sri Lankan flight UL 183 scheduled to take off from Colombo at 1 pm has been cancelled.
All operations at the terminal remain suspended and all flights are being diverted to other airports.Staff and passengers were evacuated immediately after the attack.
Heavily armed gunmen attacked Karachi international airport in Pakistan last night killing 13 people.
An army spokesman said all 10 of the gunmen who attacked Jinnah International Airport's old terminal had also been killed.