ROSTOV-ON-DON, November 1 (RIA Novosti) - An Interior Ministry building in Ingushetia came under fire on Sunday from rocket-propelled grenades and automatic weapons, with one police officer injured, a spokesman said.

"At about 19.30 Moscow time [16:30 GMT], rocket-propelled grenades and automatic weapons were fired at a regional police department building in Nazran. According to preliminary reports, one member of a temporary Interior Ministry task force was hurt," the spokesman said by telephone.

He added that investigators were working at the scene.

Russia's mainly Muslim North Caucasus republics, especially Chechnya, Dagestan and Ingushetia, have seen an upsurge of militant violence this year, with frequent attacks on police and officials.

Nazran, the largest city in Ingushetia, saw the worst attack in August, when at least 20 officers died in a truck bombing at the police headquarters.