Complaints of violence and incitement of tension are under investigation by the competent authorities, Foreign Ministry Spokesperson Theodoros Gotsis told CNA, invited to comment on the incident that occurred earlier within the buffer zone, in the Frenaros - Vrysoulles area in the eastern part of the island, between members of the UN Peacekeeping Force in Cyprus (UNFICYP) and a farmer, who went with his workers to cultivate fields.