Deputy Chairman of the Hellenic Air and Rail Accident Investigation Authority (HARSIA), Christos Papadimitriou, has resigned, citing personal and family reasons.
His departure follows controversy over the official report on the deadly Tempi train crash.
In his resignation letter to Deputy Transport Minister Konstantinos Kyranakis, Papadimitriou affirmed the authority had delivered a “thorough and well-constructed report” that would serve the future of Greek rail safety.
However, he highlighted one unresolved issue: the “fireball” that erupted after the collision, killing several passengers.

“The only exception concerns the issue of the fireball, which in the unanimous opinion of the council, as stated in the minutes of February 26, 2025, requires further investigation. This is something I have said from the very day the report was presented,” Papadimitriou wrote.
The report, released in late February, attributed the fireball to an “unknown” material, citing input from foreign experts at the Universities of Ghent and Pisa. Those experts have since questioned how their conclusions were represented.
On Monday, Papadimitriou said he would request the removal of any references linking the fireball directly to the collision.
Source: Ekathimerini.