article_snippet: Russia's Sputnik News came as Russian authorities reported making five other arrests in connection with Boris Nemtsov's killing.
article_snippet: One of those arrested claims to have an alibi, according to Russia's Sputnik News.
article_snippet: Two of the suspects have been formally charged and three "remain under the status of suspects," court spokeswoman Anna Fadeyeva told Sputnik.
article_snippet: Two of the suspects are Anzor Gubashev and Zaur Dadayev, Federal Security Service director Alexander Bortnikov said in a televised statement.
article_snippet: The others are Ramzan Bakhayev and Shagit Gubashev, Anzor's younger brother, according to a Sputnik report that also said Dadayev was the only one of the five to plead guilty -- though to what crimes was not clear.
article_snippet: Federal Security Service director Alexander Bortnikov said those detained are from the southern region of the North Caucasus, which for years has been a hotbed of unrest and rebellion against Moscow.
article_snippet: Gubashev was arrested between the town of Malgobek and the village of Voznesenovskaya, while Dadayev was arrested in the city of Magas, Barakhayev told TASS.
article_snippet: Later Saturday, a southern Russian law enforcement official told state news agency RIA Novosti that two more men were arrested.
article_snippet: The two suspects in the second arrest were not named, but one of two more men were arrested was driving with Dadayev, and the other man is Gubashev's younger brother, Barakhayev said.
article_snippet: Like Gubashev and Dadayev, The two suspects in the second arrest are also ethnic Chechens, according to Barakhayev.
highlights_snippet: One of the men arrested reportedly served as an officer in a Chechen police battalion .
  
highlights_snippet: Four of the five suspects are ethnic Chechens, law enforcement official tells media .