The US has built up its military presence in the Middle East in response to Iran's violent crackdown on protests.
The talks had appeared to be in jeopardy, with the two countries at odds over the location and parameters.
The swap - the first since October - sees 157 Ukrainians and 160 Russians returned home.
US Vice-President JD Vance hosted ministers from Denmark and Greenland to discuss the Arctic territory's future.
The BBC and YouTube are in talks for a landmark deal that would see the British broadcaster produce content for the video platform, according to a report in the Financial Times. The FT reports that ...
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