Updated with lawyer's remarks.Russian authorities have detained a math graduate student and self-described anti-fascist immediately as he left prison after serving a previous jail term, the independent student news site DOXA reported Monday.Azat Miftakhov, 30, was released earlier in the day from a penal colony where he had served a four-year sentence for breaking the office window of Russias ruling political party.The Moscow State University graduate student, who the human rights group Memorialdeclared a political prisoner, has denied the charges of hooliganism and accused the authorities of torture.Miftakhov's support group had already warned last week that he could face fresh chargesin connection to his purported approval of a deadly attack on a Federal Security Service (FSB) building in northern Russias Arkhangelsk.The state-run TASS news agency reported later on Monday that Miftakhov's lawyer had confirmed her client had beencharged with "publicly advocating for acts of terrorism," adding that he denied the accusations.Miftakhov was reportedly allowed to speak with his parents and wife for five minutes before an FSB vehicle took him to a pre-trial detention center in the city of Kirov.A Kirov court isscheduled to rule on his pre-trial detention on Tuesday morning, according to Miftakhov's support group.Russian authorities placed Miftakhov on its list of terrorists in August.Dozens of Russian and foreign academics, intellectuals and other figures havesigned a French petition calling for Miftakhovs release as of this summer.