The United Nations says unidentified gunmen in Sudan's western Darfur region have ambushed and wounded three members of an African Union team.

A U.N. spokeswoman said Wednesday, two of those wounded were AU monitors. The third victim was a Sudanese translator.

The spokeswoman said one of the monitors was shot in the neck during the attack Tuesday north of the town of Nyala. She said the other two were only lightly hurt and that all three are now in stable condition.

Last week, a U.S. development official was shot in the face while working in Darfur. She survived the attack.

The African Union has a force of at least 2,000 personnel in Darfur, including troops and cease-fire monitors. The force has limited power to protect civilians.

Some information for this report provided by AP and Reuters.