Move comes after mayor Zohran Mamdani spoke on return of the Koh-i-noor diamond after UK royals’ visit to New York

Hundreds of antiquities valued at $14m have been returned to India by New York authorities, including some connected to the alleged art smuggler Subhash Kapoor, in a move that is likely to raise the pressure on others to make similar gestures.

The return of 657 antiquities was announced by the Manhattan district attorney, Alvin Bragg Jr, on Tuesday, and came as New York City’s mayor, Zohran Mamdani, waded into the historically contentious ownership of the 105.6 carat Koh-i-noor diamond.

Romantic poet’s letters to Fanny Brawne, dated between 1819 and 1820, had been stolen from a Long Island estate

Eight original handwritten letters from the Romantic poet John Keats to his muse and “one passion”, Fanny Brawne, were returned to the family of John Hay “Jock” Whitney, the former US ambassador to the UK, on Monday after being stolen from Whitney’s home in the 1980s.

Keats’s letters, including the first letter he ever wrote to Brawne, are dated between 1819 and 1820. Valued at approximately $2m, the 37 letters are held in a gilt morocco-bound portfolio. Brawne was Keats’s neighbor in Hampstead, with whom he became infatuated and elevated to muse and goddess.