The Sudanese army says a main Darfur rebel group has attacked three areas in neighboring North Kordufan state, killing an unspecified number of civilians.
An army spokesman, Col. Sawarmi Khalid Saad, was quoted on Sudan's military website Saturday as saying the attacks targeted areas where security forces are not present.
The Darfur-based Justice and Equality Movement has not claimed responsibility. In the past it launched an attack in Kordufan, which is about 400 miles (700 kilometers) west of the capital Khartoum.
The Sudanese state of Kordufan is next to Darfur. The U.N. says 300,000 people have died in the government's war on Darfur since 2003.
The rebel group, which did not join a peace deal with Khartoum, was behind a 2008 attack in the capital.