In order to protect Kosovo's multiethnic character, all sides, including Belgrade, Pristina and Kosovo Serbs, must work towards a compromise and bear in mind that the purpose of UN special envoy Martti Ahtisaari's proposal is to find a solution to Kosovo's status, Moratinos said.
I have called on Serbian leaders to join in negotiations on Kosovo in a constructive manner, Moratinos told reporters after talks with Serbian President Boris Tadic, PM Vojislav Kostunica and Foreign Minister Vuk Draskovic.
Moratinos went on to say that it was up to the Security Council to make the final decision on Kosovo's future and that Spain would support its decision regardless of what it may be, but that it hoped that the negotiations would result in a compromise solution.
Moratinos would not answer when asked if Kosovo's possible independence could affect the situation in Spain and lead to changes in its territorial organisation.
Every case should be considered separately in light of special legal and historical circumstances, he said, adding that there was no common ground between the Kosovo case and Spain and that they could not be compared.
Serbian President Tadic repeated that Kosovo's independence was unacceptable to Serbia and that Serbia would defend its territorial integrity and sovereignty with the policy of peace and not the policy of the 1990s, adding that Serbia expected understanding with regard to its territorial integrity and dignity.
Moratinos said that it was important to speed up the formation of Serbia's new government so that key reforms could continue, and called on Serbia to take action and cooperate fully with the Hague war crimes tribunal.
During the visit to Belgrade, Moratinos also visited the state prosecutor's office and the Belgrade District Court's Council for War Crimes.
A protest meeting was held today in front of the US Embassy in Belgrade.
According to the press, between 15,000 and 20,000 people rallied in front of the embassy to show their opposition to Ahtisaari's plan.
The rally was organised by the Serb National Council (SNV) from Kosovo. Speakers at the protest said that Ahtisaari's blueprint would lead to Kosovo's independence and rob Serbia of one part of its territory, and demanded that Kosovo remain an integral part of Serbia.
SNV leader for northern Kosovo Milan Ivanovic said that Serbia would never accept Kosovo's independence and that the USA was the architect of Ahtisaari's plan.
Protesters said they did not want US diplomatic officials to consider the rally to be a threat to the United States.
Roderick Moor, charge d'affaires at the embassy, spoke to the organisers of the rally, saying in a statement that his country supported the right to peaceful assembly as a legitimate form of free expression, as well as that it supported a peaceful and safe future for all people in Kosovo, including Kosovo Serbs.
No incidents were reported at the protest.
The rally was supported by the Vojislav Kostunica's Democratic Party of Serbia, the Serb Radical Party and the Socialist Party of Serbia, but their representatives did not address the protesters.