Martti Ahtisaari's meeting with the representatives of the Contact Group, which is comprised of the United States, Great Britain, France, Germany, Russia, and Italy, was brief, unofficial and only one in a series of regular meetings, Jiang said.
Kosovo is officially part of Serbia, but has been under UN supervision since the 1999 NATO air raids. The majority Albanian population want an independent state, but the minority Serbs want the province to remain in Serbia.
Serbian Prime Minister Vojislav Kostunica has said that the southern province should be incorporated into the preamble of the Serbian constitution.
In an interview with Vecernje Novosti of Sunday, he said the inclusion in the preamble, before a final decision on Kosovo's status was made, was the best way to clearly say that historically and legally, especially in accordance with international law, Kosovo and Metohija are an integral part of Serbia.
The constitution's preamble has been copied from the UN Charter, under which internationally recognised borders cannot be changed, said Kostunica.
He underlined that "the issue of the constitution is an issue of the country's future and one should not doubt that citizens are closely following developments in the adoption of the state's most important legal act".
"The constitution is directly linked also to the protection of our fundamental state and national interests, and here I am primarily thinking of Kosovo and Metohija."
Asked if the preamble would be binding at all, Kostunica said it would stop being binding when the UN Charter stopped being binding.
"It is completely inconceivable to repeal the Charter's fundamental provision on the unchangeability of existing borders and on the territorial integrity and sovereignty of existing states," Kostunica said.