United Nations ? U.N. Secretary-General Kofi Annan on Tuesday offered a grim assessment of Kosovo’s progress toward stability, saying in a report that the region had fallen behind in efforts to create a multiethnic and democratic society.

Annan’s report to the U.N. Security Council said there had been little headway in efforts to achieve a series of benchmarks, including the rights of minorities, ending corruption and the return of refugees.

In the report, Annan said he was “seriously concerned that there have been delays or setbacks in most areas,” and called on Kosovo’s leaders to renew their efforts.

The United Nations has administered Kosovo since NATO’s 1999 air war against Yugoslavia.

The U.N. set eight benchmarks for Kosovo that include establishing democratic institutions, protecting minorities, promoting economic development and ensuring the rule of law, freedom of movement and property rights.