A bomb exploded near the offices of Hellenic Train, Greece's main railway company, in central Athens.
There were no reports of injuries.
Local media reported that shortly before the explosion, the newspaper and news website received an anonymous call from the caller, who said that a bomb had been planted near the railway company's office and would explode in about 40 minutes.
Police cordoned off an area along the Greek capital's main street, preventing residents and tourists from approaching the building, which is located in an area with several bars and restaurants.
Police officers at the scene said a bag containing an explosive device was planted near the Hellenic Train building on Syngrou Avenue.
The explosion comes amid widespread outrage over a major train disaster in 2023 that killed dozens of people when a freight and passenger train traveling in opposite directions accidentally ended up on the same track.
Criticism of the government's handling of the February 28, 2023, collision in Tempe, northern Greece, has intensified in recent weeks as the second anniversary of the disaster, which killed mostly young people returning to university after public holidays, passed.
The derailment exposed serious flaws in Greece's rail system, including safety systems, and sparked mass protests led by relatives of the victims against the country's conservative government.
Critics have accused authorities of failing to take political responsibility for the disaster and holding senior officials accountable.
So far, only railway officials have been accused of any crimes. Several protests in recent weeks have turned violent, with demonstrators clashing with police.
Earlier on Friday, a heated debate in parliament over the rail disaster led to officials voting to refer a former cabinet minister to the judiciary for alleged misconduct over his actions in the immediate aftermath of the crash.
Hellenic Train said it “unequivocally condemns any form of violence and tension that creates an atmosphere of toxicity that undermines any progress.”
Greece has a long history of politically motivated violence, with local extremist groups carrying out small-scale bombings that usually cause damage but rarely cause injuries.
Sourse: breakingnews.ie