The trial of 13 suspected members of the Conspiracy of the Cells of Fire urban guerrilla group is due to begin under tight security in a courtroom at Korydallos Prison today, after authorities confirmed that four people arrested last week in Athens were planning an attack to mark the beginning of the case. Six of those going on trial are in custody, three were released on bail and four are still wanted by authorities. The suspects have been charged in connection to a string of bloodless bomb attacks on public buildings and the homes of politicians. Officers have been placed on high alert after evidence found at apartments rented by the four suspects arrested last week indicated they were planning an attack which would be claimed by a new terrorist group. Sources told Sunday’s Kathimerini that a list of judges and police stations was found. A proclamation, that officers believe was to be issued after the planned attack, was also recovered. Police do not think the four suspects are members of Conspiracy of the Cells of Fire and in their alleged proclamation they differentiate their position from that of another group, Revolutionary Struggle. Meanwhile, German police denied that a fifth suspect, a 27-year-old German woman arrested in Athens, was the daughter of Barbara Meyer, a suspected member of the Red Army Faction – a defunct leftist German guerrilla group. Sources said the 27-year-old was arrested after being observed meeting with the four suspects.