The decision by the Court of Cassation makes definitive former French President Nicolas Sarkozy’s conviction to a year in prison, half of it suspended, for fraudulently overspending on the failed campaign.

The Paris prosecutor’s office identified the detained founder of SOS Donbass only as Anna N. It said the 40-year-old was born in Russia. Also arrested was a 40-year-old Russian identified as Vyacheslav P., as well as two French nationals referred to as Vincent P., 63, and Bernard F., 58.