Greek police on Thursday arrested more than 20 far-left DHKP-C terror suspects in the capital Athens, the local media reported.
According to the Athens News Agency/Macedonian Press Agency (ANA/MPA), Greek counter-terrorism police carried out an operation against the terror group in Exarcheia and Sepolia neighborhoods.
The operation is still underway, it added.
Greek police said in a statement that they found a tunnel in a house busted in Exarcheia and seized many heavy weapons.
A statement with details will be published after the operation ends, it said.
* Writing by Davut Demircan