MOSCOW, October 15 (RIA Novosti) - Russian strategic bombers will conduct October 16-30 a series of long-range training flights, with simulated bomber raids and missile launches, an Air Force spokesman said on Monday.

"Russian strategic bombers Tu-160, Tu-95 and Tu-22M3, and Il-78 aerial tankers will conduct flights over the Arctic region, the Atlantic and the Pacific oceans, and the Black Sea, with simulated bombing raids and firing of cruise missiles at testing grounds in northern and southern Russia," Colonel Alexander Drobyshevsky said.

Colonel General Alexander Zelin, the commander of the Russian Air Force, will supervise the exercises.

Moscow announced in mid-August that regular patrol flights by strategic bombers had been resumed, and would continue on a permanent basis, with patrol areas including commercial shipping and economic production zones.

The U.S. administration expressed concern about the resumption of patrol flights by Russian strategic bombers.

"I think the rapid growth in Russian military spending definitely bears watching," U.S. Secretary of State Condoleezza Rice said in an interview with ABC News on October 14.

"And frankly, some of the efforts - for instance, Bear flights in areas that we haven't seen for a while - are really not helpful to security."