Sixteen alleged terrorists were arrested after they participated in a May Day celebration in the northern province of Corum in 2011, CNNTurk.com reported Friday.
Authorities said they were chanting illegal slogans and were members of the Revolutionary People's Liberation Party/Front (DHKP/C), which is recognized as a terrorist organization.
Police searched the homes of those arrested and found posters of Turkish revolutionaries Deniz Gezmis and Mahir Cayan, a badge with a hammer and sickle emblem on it and pro-DHKP/C magazines. The items were used as evidence to support allegations against those arrested.
An Ankara has asked for three of those arrested to be sentenced to 35-80 years in prison for "membership in the DHKP/C" and "propagating the organization."
The other 13 suspects face various prison terms for membership in a terrorist organization and spreading propaganda.