An American woman and her Egyptian husband who had been imprisoned by the Egyptian government for three years arrived at Joint Base Andrews in Maryland late Thursday and will visit President Trump at the White House on Friday.

Aya Hijazi and Mohamed Hassanein were among the group of six aid workers who were locked up in 2014 over allegations of child abuse and trafficking charges.

After years of failed negotiations by the Obama administration, a family member of the couple credited Trump with "personally" stepping in to free him and his wife, as well as the four others.

"It's been a roller coaster of emotions the past couple of days," Hijazi's brother, Basel, told the Washington Post. "We're very grateful that President Trump personally engaged with the issue. Working closely with the Trump administration was very important for my family at this critical time. It let us be reunited as a family. We're so grateful."

The Trump administration hosted Egyptian President Abdel Fatah Sissi at the White House earlier this month, smoothing over relations. Last Sunday, a Cairo court dismissed the charges against the aid workers.

Earlier this week, Defense Sec. James Mattis and deputy National Security Adviser Dina Powell visited Egypt to discuss the issue. Trump ordered a government plane to Egypt to carry the two back to the U.S.

A White House official said there was no quid pro quo offered for the releases, but they did receive assurance that the aid workers would not be called back to Egypt if they were found guilty at a later date.

The couple will visit with Trump, his daughter, Ivanka, and his son-in-law, Jared Kushner, on Friday. The first daughter and her husband are senior advisers to Trump and assisted with the operation.