A break-off of the recognized terrorist group Albanian National Army (ANA) is demanding that the Presevo Valley area be included in the "independence package" of Kosovo. The ANA was officially labeled as a terrorist organization in 2003 by the SRSG for their activities against police in southern Serbia and parts of Macedonia.
You might remember the Presevo Valley from the news in 2000-2001 when an armed group of Albanians were fighting Serbian police. In one and a half years of shadowy fighting, 100 people were killed. Belgrade only had a light security presence in the area because the zone was part of NATO's Ground Security Zones (GSZ). NATO finally convinced the group to lay down their arms and there hasn't been much news of trouble in the area since.
The Black Shadow group issued a statement that Presevo, Bujanovac, Medvedja municipalities should be part of the independence negotiations and that the group will not accept any negotiation outcomes if they do not include those areas. The group also warned the international community not to repeat the mistakes of the past that lead to war in the Balkans as well as mentioning that Albanian police officers should take care in their actions else they would be considered collaborators with the Serbs.