In the early morning hours of Thursday, April 23, arsonists targeted the offices of the NFKA on El. Venizelos in Kallithea, according to police.

At about 03:20 unknown perpetrators placed an incendiary device at the entrance of the offices of the EFKA, which consisted of two gas caps. However, the gas caps did not explode but the fire that broke out caused minor damage to the entrance of the building.