Police in Russia's southern Stavropol Krai region are looking for three residents of the volatile North Caucasus region of Kabardino-Balkaria suspected of killing six people.
Sources in the Stavropol police told Interfax news agency and the "Kommersant" daily on January 9 that Anzor Margushev, 32, Artur Margushev, 23, and Vadim Shogenov, 25, were suspects in the high-profile killings.
A Stavropol Krai regional security spokesman that six corpses were discovered on January 8 in or near four cars in two separate districts outside the regional capital, Stavropol.
Two cars were booby-trapped. One exploded but caused no injuries.
Little is known about the motives for the killings.
Stavropol Krai is a gateway to the North Caucasus, where Russia faces an insurgency by Islamist militants who have threatened to disrupt next month's Winter Olympics.
Based on reporting by "Kommersant" and Interfax