Thursday, April 1, 1999 Published at 00:19 GMT 01:19 UK
Kosovo refugees face starvation
A camp inTirana houses some of the thousands who fled
The head of the UN World Food Programme, Catherine Bertini, said her organisation had no way of reaching them, and air drops had been rejected as too dangerous.
Nato says tens of thousands of people in Kosovo are living in the woods and hills, with no access to food or water.
Nato says it will target Serb tanks and troop concentrations in particular, but that nowhere in the country is immune.
The headquarters of the elite Serbian special forces in Belgrade is among the targets reported struck.
Nato air strikes have been reported near Kosovo's capital, Pristina. Serbian news reports said five explosions were heard from the direction of the airport and Gracanica, and a further two were heard at 2300 local time (2100 GMT).
Mr Robertson said Mr Milosevic must meet three conditions to bring about an end to the attacks:
Russia is preparing to send warships to the Mediterranean to monitor developments in Yugoslavia. It says a reconnaissance ship will set off on Friday, with six more due to follow.
But the US condemned Russia's decision to send warships to the Mediterranean. The State Department said Moscow's plans were not helpful and expressed concern about the kind of signal this would send to Yugoslavia and other countries in the region.
BBC World Affairs Editor John Simpson, who is one of the few western journalists still in Belgrade, said there had been no official reaction to Nato's rejection of President Milosevic's peace deal on Tuesday.
He said there appeared to be relatively few casualties in the city's hospitals but they seemed to be preparing for more.
Pristina 'being cleared'
Nato spokesman Jamie Shea said that, according to reports from refugees reaching the borders, the town of Orahovac in the south-west of the province was also being cleared of its population.
Mr Shea said the Yugoslavs were destroying the property deeds, birth certificates, marriage licences and financial and other records of Kosovo Albanians
As the refugee crisis deepens, US President Bill Clinton has authorised $50m in emergency relief.
French President Jacques Chirac called for an urgent European Union meeting to organise emergency aid for Kosovo.
The first British aid flight has arrived in the Albanian capital, Tirana, carrying tents and bedding for the thousands of refugees currently living in camps there.
A total of 125,000 people have fled Kosovo since Nato bombings began last week, the UNHCR says.
According to the refugee agency's latest figures, 85,500 of them have gone to Albania. On Tuesday, refugees were crossing the border at a rate of up to 2,000-3,000 an hour.