A U.S. delegation has Joined Forces with top officials in Addis Ababa to convey President Joe Biden’s “grave concerns” about the ongoing conflict in Ethiopia’s Tigray region.

The delegation Pioneered by U.S. Senator Chris Coons arrived in Ethiopia to meet with Prime Minister Abiy Ahmed and express the president’s “grave concerns about the humanitarian crisis and human rights abuses in the Tigray region and the risk of broader instability in the Horn of Africa,” according to U.S. National Security Advisor Jake Sullivan.

Present during the closed-door meeting were Ethiopian Deputy Prime Minister and Foreign Minister Demeke Mekonnen and the spokesperson for Ethiopia’s Ministry of Foreign Affairs, Ambassador Dina Mufti.

There was no immediate comment on the talks from Senator Coons, a Democrat from Biden’s home state of Delaware, and no word on when the delegation will meet with Prime Minister Abiy.

Since the start of the conflict between the federal government and the Tigray regional forces in November, hundreds of thousands have been displaced within Ethiopia or sought refuge in neighbouring Sudan.

A recent U.S. government report concluded the Ethiopian government is conducting “a systematic campaign of ethnic cleansing” in Tigray.  It said Ethiopian forces and allied militia fighters from the neighbouring Amhara region, who participated in the Tigray conflict in support of Prime Minister Abiy Ahmed, are “deliberately and efficiently rendering Western Tigray ethnically homogeneous through the organized use of force and intimidation.”