If you look at the map they were apprehended near the settlement Teploe (Тёплое), NOT Teply (Тёплый), which is the one by the Belarusian border. It is about 380th km. of Kyevsky highway. Тёплое and Тёплый both mean "warm." The former, with a neuter ending, is used in front of neuter nouns, and the latter has the masculine ending.