The victims' families thronged the Memorial to read the names of their late relatives on the panel on which they are inscribed, while some Manhattan towers were illuminated in a striking sky blue as part of the annual commemoration "Tribute in Light".
US President Joe Biden, Vice President Kamala Harris and former President Donald Trump appeared at the attack site in remembrance of the 23rd anniversary of the September 11 attacks, which claimed the lives of nearly 3,000 people when hijacked planes crashed into the trade center, the Pentagon and a Pennsylvaniak field.