Image of man falling from Twin Towers resurfaces 25 years after 9/11 attacks

An image of a man falling from the Twin Towers of the World Trade Centre has resurfaced as the 9/11 terror attacks in the US mark 25 years. Known as 'The Falling Man', the identity of the victim remains unknown. Al-Qaeda hijackers had slammed two passenger planes into the towers before the attack on the Pentagon.