ATHENS, Jan. 8 (Xinhua) -- The Greek urban guerrilla group "Group of Popular Fighters" (Omada Laikon Agoniston -- OLA) claimed on Tuesday responsibility for the December bomb attack against local media group SKAI.
On Dec. 17, 2018, a strong blast caused significant material damages, but no injuries at the premises of the media group in Athens.
The building had been evacuated after two warning telephone calls made to other media outlets.
In a proclamation posted on a Greek anarchist website on Tuesday, OLA claimed responsibility for the attack, Greek media such as "Ta Nea" (The News) newspaper, reported.
The left-wing group criticized SKAI's coverage of news, insisting that the explosion was not an attack against press freedom and democracy.
The group which was first appeared in 2013 during the years of the Greek debt crisis has claimed responsibility for a series of attacks.
The first one was in January 2013 when gunmen attacked the headquarters of the conservative then ruling and now main opposition New Democracy party. No injuries occurred.
In December the same year gunmen attacked the residence of the German ambassador to Greece. Again no one was injured.
In 2014, OLA was linked to the strong blast at the premises of the central bank of Greece in the center of Athens and in 2017 to a bomb attack against the Court of Appeals building.