U.S. President Joe Biden, in a call with Kenyan President Uhuru Kenyatta, discussed the crisis in Ethiopia’s Tigray region, the White House said.

Biden and Kenyatta “discussed the deteriorating humanitarian and human rights crises in Ethiopia’s Tigray region and the need to prevent further loss of life and ensure humanitarian access,” the White House said in a statement.

The United States has expressed concern over the crisis in Tigray, where the Ethiopian government has claimed victory over a rebellious regional government in a conflict that began in November.