The top US prosecutor in Manhattan has resigned after refusing an order to drop a corruption case against New York City Mayor Eric Adams.

Danielle Sassoon, a conservative lawyer recently promoted by President Donald Trump, said dismissing the case would set a "breathtaking and dangerous precedent".

Sassoon's departure - along with at least two other top justice department officials - is the latest sign of disquiet over sweeping changes the Trump administration is making in federal law enforcement.

In an indictment last September, Adams is alleged to have accepted gifts totalling more than $100,000 (£75,000) from Turkish citizens in exchange for favours. He denies the charges.

The case was initially brought by officials appointed by former President Joe Biden.

But on Monday, a Trump appointee, acting deputy attorney general Emil Bove, ordered Sassoon and New York prosecutors to drop the case, saying it "restricted" the mayor's ability to address "illegal immigration and violent crime" - a key goal of Trump's administration.