The seizure appears to be part of a corruption investigation into whether Eric Adams' 2021 campaign conspired with Turkey's government, according to The New York Times, which broke the story.

Citing people with knowledge of the matter, the paper said Adams was approached by agents on Monday after an event, who asked the mayor's security personnel to step away from his vehicle before climbing inside with him.

The agents then took devices including at least two cellphones and an iPad, which the Times said were returned to him within days.

A lawyer for the mayor did not immediately respond to an AFP request for comment.

The federal probe into Adams' campaign went public last week when FBI agents searched the home of his former top fund-raiser — a 25-year-old one-time intern, Brianna Suggs — seizing laptops, cell phones and a manila folder labeled "Eric Adams."