evidence: The Ungar-Too (also: Ungar-Tepe) is a mountain located on the Kyrgyzstan–Uzbekistan border, which has been a cause of tension between the two countries. There is an important relay station on the mountain, which is of great importance for Kyrgyz telecommunications service providers. Overall, development of the Ungar-Too mountain is limited to six antenna masts and a few smaller buildings. [...] The Uzbek presence on the mountain remained for the time being and was increased to 20 people at the beginning of September 2016. The occupation of the Ungar-Too was also used as leverage in other acute issues, but bilateral negotiations initially remained unsuccessful. The four Kyrgyz workers were held in a police station in Yangikurgan.[4] The diplomatic efforts eventually led to the release of the prisoners and the evacuation of the mountain on 18 September.[5]