Zohran Mamdani was sworn in as New York City’s mayor just after midnight in a historic ceremony at a decommissioned Manhattan subway station.

Making history as the first Muslim to lead the United States’ largest city, Mamdani took his oath with his hand placed on a Quran.

“This is truly the honour and the privilege of a lifetime,” Mamdani said in a brief speech.

The private ceremony, conducted by New York Attorney General Letitia James at the architecturally stunning old City Hall station – one of the city’s original subway stops known for its arched ceilings – marked the official transition of power.

In his inaugural remarks, Mamdani highlighted the venue as a “testament to the importance of public transit to the vitality, the health and the legacy of our city” while announcing Mike Flynn as his new Department of Transportation commissioner.

The mayor concluded his brief address saying, “Thank you all so much, now I will see you later,” before ascending the stairs with a smile.

A more elaborate public inauguration will take place at 1pm (18:00 GMT) at City Hall. A public celebration will follow on Broadway’s “Canyon of Heroes”, famous for hosting ticker-tape parades.

As he steps into one of the US’s most demanding political positions, Mamdani breaks multiple barriers. At 34, he becomes the city’s youngest mayor in generations and the first of Muslim faith, South Asian descent, and African birth.