On Wednesday night, a banner “with the symbols of extremist organizations” was put up on a bridge opposite the Kremlin in Moscow by a group of unknown activists.

      The banner consisted of several logos, including those of the banned National Bolshevik Party and the ruling United Russia party, and caption "Extremist Organizations of Russia".

      Moscow police discovered the banner around 5 a.m. on Wednesday and took it down, but its pictures spread quickly through different social networks.

      There were no activists present at the scene, and no organization has claimed responsibility for the action. Police found a news reporter taking pictures of the banner, but soon released him after questioning.

      Similar events have taken place in the past in the Russian capital. Last February, a group of opposition activists erected a black-and-yellow banner with a picture of then-Prime Minister Vladimir Putin crossed out with an X opposite the Kremlin.