OSLO -- Russian Foreign Minister Andrei Kozyrev condemned NATO's air strikes Wednesday on Bosnian Serb missile sites, saying efforts should focus instead on achieving a cease-fire.


"We have been against air attacks on Bosnian Serbs and we feel what we need to do now is not to set fire to the oil but on the contrary to achieve a cease-fire in Bosnia," Kozyrev told reporters.


Kozyrev, in Oslo for talks with Norwegian leaders, was commenting on attacks by NATO warplanes on three Serb surface-to-air missile sites in Bosnia after the missiles' radar systems locked on to the aircraft as they patrolled.


"You know, we are now making further efforts to achieve a cease-fire there," Kozyrev added without elaborating.


Before leaving Moscow for Oslo, Kozyrev was quoted by Interfax as saying Russia would make additional proposals later Wednesday on how to end the Bosnia conflict.


He gave no details but said the new Russian initiative would be addressed to "broad [international] circles."


Russia is worried about continued fighting between the Bosnian Serbs and Moslem-Croat forces in the northwest of the former Yugoslav republic despite a political deal struck by Bosnia, Croatia and rump Yugoslavia in New York last week.


"As long as hostilities continue in Bosnia, it will be difficult to talk about positive shifts in the peace process," Kozyrev said in Moscow.


Wednesday's air raids were the first against the Serbs since mid-September when they removed most of their heavy siege guns from around Sarajevo after a two-week NATO bombardment.


Since then, negotiators led by UN envoy Richard Holbrooke have pressed both sides to continue the process by agreeing a cease-fire in the 3 1/2-year war.


Kozyrev said, according to Interfax, that Deputy Foreign Minister Igor Ivanov was visiting rump Yugoslavia on Wednesday for talks with Belgrade officials and possibly with Bosnian Serb representatives.


"[Ivanov's] trip is aimed at discussing conditions under which the Serb side would be ready to cease fire," Kozyrev said.