Democratic Rep. Nancy Pelosi, 84, was hospitalized while abroad with a congressional delegation, her office said on Friday.

The former speaker will likely require surgery for a hip injury she sustained after falling down stairs while in Luxembourg, sources familiar with the situation told ABC News. It is not clear when and where a surgery would take place, but her office said she is currently receiving medical care.

"While traveling with a bipartisan Congressional delegation in Luxembourg to mark the 80th anniversary of the Battle of the Bulge, Speaker Emerita Nancy Pelosi sustained an injury during an official engagement and was admitted to the hospital for evaluation," her spokesman Ian Krager said in a statement.

"Speaker Emerita Pelosi is currently receiving excellent treatment from doctors and medical professionals," the statement noted. "She continues to work and regrets that she is unable to attend the remainder of the CODEL engagements to honor the courage of our servicemembers during one of the greatest acts of American heroism in our nation's history."

"Speaker Emerita Pelosi conveys her thanks and praise to our veterans and gratitude to people of Luxembourg and Bastogne for their service in World War II and their role in bringing peace to Europe," Krager added.

Eighteen House members are part of the delegation, according to House Speaker Mike Johnson. They were to take part in observances of the anniversary of the pivotal World War II battle on Friday and Saturday.

Other lawmakers on the trip include Republican Rep. Michael McCaul, the chairman of the House Committee on Foreign Affairs, and Democratic Rep. Mark Takano, ranking member of the House Committee on Veterans’ Affairs.

Pelosi in November won reelection to her California seat, clinching a landmark 20th term.

Despite stepping down from leadership in 2022 after Republicans won control of the House, Pelosi remains a key Democratic power player. She worked behind the scenes to urge President Joe Biden to step out of the 2024 race after his CNN debate performance, ABC News reported at the time.

Pelosi later said Biden's late exit was a key factor in Vice President Kamala Harris' loss to President-elect Donald Trump.