JAKARTA (Reuters) - The Indonesian unit of Freeport-McMoRan Inc has temporarily shut the main supply route to its Papua mine after a shooting incident, a spokesman said, amid escalating tensions between security forces and an armed rebel group in the area.  No one had been reported hurt after shots were fired at a vehicle, but the main supply route to the world s second-biggest copper mine had been temporarily closed while the security situation was assessed, Freeport Indonesia spokesman Riza Pratama said in text message. Authorities in Indonesia s eastern province of Papua are delivering food and aid to villages near the mine where security forces say the rebel group has blocked residents  movement, as security personnel surround the area, a police official said. Police say a group linked to the Free Papua Movement (OPM) is preventing about 1,000 people from leaving five villages near the Grasberg mine operated by the U.S. company.   We continue to try a persuasive approach and dialogue,  said Viktor Mackbon, police chief of the Mimika area, where the villages are located. Talks with the group would be conducted through public and religious figures in the region, he added. Officials on Saturday said about 200 police and military personnel had been deployed in preparation to secure the area by force, if necessary. Police sad they will distribute on Monday a notice in the area for the  armed criminal group  to give themselves up and surrender weapons. Reuters could not immediately reach members of the rebel group, the West Papua National Liberation Army (TPN-OPM), to seek comment. On Friday, the group denied occupying villages near the mine, but said it was  at war  with the police, military, and Freeport.   A resident from one of the villages, Banti, said security forces had blocked access to the village. Residents he had spoken were not being held hostage by separatists but  are only worried about what might happen if the police and military come into their area , he said. A state of emergency has been declared in the area and  security stepped up after a string of shootings since Aug. 17 that killed one police officer and wounded six.      Papua has had a long-running, and sometimes violent, separatist movement since it was incorporated into Indonesia after a widely criticised U.N.-backed referendum in 1969.     The incident is the first escalation of violence under President Joko Widodo, who has sought to ease tension in the region by stepping up investment, freeing political prisoners and tackling human rights concerns.      The Grasberg mine has been dogged by security concerns for decades. From 2009-2015 shootings within the mine project area killed 20 people and wounded 59. 