The victims, all men between the ages of 20 and 60, were shot at close range
                  Friday night, according to KFOR officials.

                  CNN's Nic Robertson said British KFOR forces have sealed off the area, and
                  authorities have appealed for calm.

                  According to KFOR spokesman Major Jan Joosten, British troops were
                  patrolling near the town of Lipljan at 9.30 p.m. (1930 GMT) on Friday when
                  they heard shooting.

                   About 30 minutes later, they discovered  the bodies of 13 Serbs who had been
                   shot dead next to their combined harvester.

                   The body of a 14th Serb was discovered 150 yards (meters) away on
                   a tractor.  The killings occurred on a rough farm
                  track about half a mile (1 km) from the village of Gracko.

                  The victims' bodies were removed to Pristina hospital, officials said. British
                  military police were leading the investigation, which was being treated as a
                  murder probe.

                  KFOR says it will aggressively track the perpetrators.

                  "KFOR and the international police will
                  hunt down those responsible for this
                  awful crime. We will ensure they are
                  brought to justice to face the full might
                  of the law," Joosten said.

                  Although British KFOR forces have
                  patrolled the area, and east of the
                  provincial capital, Pristina, U.S. Army
                  soldiers, members of the Task Force Falcon, 1st Infantry Btl., guard
                  a checkpoint in Gnjilane, many residents of the
                  Gracko area say they do not feel safe. They report that Kosovar Albanians
                  often enter their village undeterred by peacekeeping troops.

                  In recent weeks, break-ins, intimidation, and even the killing of Serbs have
                  been reported, residents said, adding that the death of the farmers represented
                  by far the largest violent incident since peacekeeping troops arrived to restore
                  security, following the withdrawal of Yugoslav military and police forces.

                  Some Serbs were planning to leave the area because of fears for their safety.

                             Correspondent Nic Robertson contributed to this report.