Pakistan says the flying of anti-Pakistan banners and scuffles during the Pakistan-Afghanistan world cup cricket match are a matter of deep concern.

In a statement, the foreign office said it was unruly conduct of certain group of spectators toward Pakistan team players, 

The Foreign Office said the use of sports venues for such malicious propaganda is unacceptable. 

We expect all relevant authorities, both sports and law enforcement, to thoroughly investigate the matter and bring those responsible to account. 

The Foreign Office also said that the matter is also being taken up through diplomatic channels.