The Trump administration is not confirming if and when in-person talks will take place between U.S. and Iranian officials in the coming days, calling the situation “fluid.”

“These are sensitive diplomatic discussions, and the United States will not negotiate through the press. This is a fluid situation, and speculation about meetings should not be deemed as final until they are formally announced by the White House,” White House press secretary Karoline Leavitt said in a statement to ABC News.

When asked if U.S. envoys Steve Witkoff and Jared Kushner and Vice President JD Vance were expected to travel to Islamabad, Pakistan, later this week to meet with Iranian officials — as Reuters has reported — the State Department referred ABC News to the White House.

Vance’s office has not responded to requests for comment.

Pakistan has positioned itself as a mediator between the U.S. and Iran. A Pakistani official familiar with the negotiations said there are “several proposals” floating around regarding the next steps for talks and that an in-person meeting in Islamabad is on the table. Turkey and Egypt are also helping to facilitate the talks between the U.S. and Iran, the official said.

The official said the talks would likely take place within the next five days in accordance with President Donald Trump’s social media post, in which he said strikes on Iranian power plants were “paused” for the next five days as Tehran and Washington engage in diplomatic negotiations. The official cautioned that nothing is final as of yet.

-ABC News’ Mariam Khan and Hannah Demissie