TEHRAN, Iran (AP) — Iran confirmed it is holding U.S. Navy veteran Michael R. White at a prison in the country, making him the first American known to be detained under President Donald Trump's administration.

White's detention adds new pressure to the rising tension between Iran and the U.S., which under Trump has pursued a maximalist campaign against Tehran that includes pulling out of its nuclear deal with world powers.

Although the circumstances of White's detention remain unclear, Iran in the past has used its detention of Westerners and dual nationals as leverage in negotiations.

The sem...