Pakistan's Prime Minister Shehbaz Sharif has ordered an official investigation following criticism over a Pakistan International Airline (PIA) advertisement purportedly having perceived similarity to the imagery of the Sept. 11, 2001, terrorist attacks on the US.
On 9/11, hijackers crashed passenger jets into the twin towers of the World Trade Center in New York and the Pentagon in Washington DC, killing nearly 3K people. The alleged mastermind of the attacks, Khalid Sheikh Mohammad, was arrested in Pakistan in 2003.