``The talks have produced results. The rest will be announced later,'' Itar-Tass quoted Russian Prime Minister Yevgeny Primakov as saying in Belgrade after his six-hour-long discussions with Yugoslav President Slobodan Milosevic.

Primakov, who was accompanied by Foreign Minister Igor Ivanov and Defence Minister Igor Sergeyev, discussed with the Yugoslav leadership ways to find an acceptable solution through political consultations.

In Washington, US Undersecretary of State for Political Affairs Thomas Pickering said he was ``neither optimistic nor pessimistic'' that Primakov's mission to Belgrade would be successful.

``We are hopeful he (Primakov) can work something out which will stop the carnage... restart the peace process... but we are very realistic about that opportunity too,'' hetold CNN in an interview.

Meanwhile, NATO Air Commodore David Wilby told reporters in Brussels that attacks against the Serbian army and police forces in Kosovo would be intensified.

In an identical tone, the US also said it would send more bombers to join NATO's stepped up air offensive but ruled out deployment of ground forces.

Despite bad weather over Yugoslavia, American fighter jets carried out attacks for the seventh day today, targeting tanks, artillery and mobile command units even as reports said new Serb attacks on ethnic Albanians continued unabated.

Weather conditions reportedly forced US and British warplanes to abort their planned strikes last night and this morning, but a NATO spokesman claimed six waves of bombardment were conducted through Tomahawk strikes by giant B-54, B-2 and F-117 Stealth fighters.

Serbian television reported a British Harrier jet was shot down near Montenegro's capital Podgorica after bombing the airfield there, but a British foreign office spokesman denied itin London saying: ``All our aircraft are safely on the ground.''

Meanwhile, reports said Kosovo's capital Pristina was in flames with Serbian forces attacking Albanian neighbourhoods, while western officials claimed refugees were forced out of Kosovo at the rate of 4,000 an hour.

The Vienna-based human rights group, the International Helsinki Federation, said Serbian forces have surrounded Pristina trapping the Albanian population and executing several local leaders.