DUBAI — The first group of about 400 Iranians expected to be deported from the U.S. under President Donald Trump’s immigration crackdown were due to land in Qatar on Tuesday before flying to Tehran, a U.S. and an Iranian official said.

The group included both convicted criminals and people who had entered the country illegally, said the U.S. official, who spoke on condition of anonymity.

The transfer marks an unusual moment of coordination between two nations at loggerheads over Iran’s nuclear program, which Tehran says is purely civilian but Washington asserts is aimed at building a nuclear bomb.

The Iranian official, who also spoke on condition of anonymity, played down the idea of any political deal with the U.S., which joined Israeli air strikes on Iran and its nuclear facilities in

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