Another American hostage is expected to be released on Wednesday — a day after Pennsylvania teacher Marc Fogel, who was imprisoned in Russia, returned to the US.

President Trump’s special envoy for hostages, Adam Boehler, confirmed the latest hostage release in an interview on Fox News Tuesday night.

“It’s another in a stream of hostages. It’ll be unilateral as well. And I can’t release [the person’s name] until the person’s released, obviously it could endanger the hostage release and that I can’t do,” Boehler told host Sean Hannity.

“But I can say that we expect another one tomorrow. And hopefully a lot more through that, because the president made it a priority to get all Americans home,” he added.

Boehler revealed the development shortly before Trump is expected to meet with Fogel at the White House. Fogel had been sentenced to 14 years in a Russian prison after being arrested with what he claimed was legally prescribed marijuana.

The White House announced earlier Tuesday that Fogel had been freed.

It was not immediately clear which or how many Russians held by the US were being released in exchange for Fogel’s freedom.

This is a developing story. Please check back for updates.