Greek Foreign Minister Nikos Dendias has corrected his mistake of using 'Constantinople' for the Turkish city of Istanbul on Twitter.
The 59-year-old stationmaster was charged with negligent homicide for causing Greece's deadliest train crash, which killed at least 57 people.
Estonia, a country of 1.3 million people bordering Russia, has been leading international calls over the past year for more military aid to help Ukraine.
Police said 12,000 people had gathered by the large esplanade in front of the parliament to demand accountability for Tuesday's head-on collision near the central city of Larissa that has sparked widespread outrage.
Washington announces new military aid package for Kiev worth $400 million primarily comprised of ammunition, but for the first time will include tactical bridges to move tanks and armoured vehicles.
Russian troops and mercenaries rain artillery on last access routes to besieged Ukrainian city of Bakhmut, bringing Moscow closer to its first major victory in half a year after bloodiest fighting of the conflict – now in its 374th day.
Bus, tram and metro drivers walk out in major cities, causing severe travel disruption for passengers in Frankfurt, Stuttgart and Munich.
Frustrated Greek citizens and railway workers are protesting the country's worst rail disaster while politicians scramble to restore order.
A man activated high-powered explosive device upon entering the court building in Podgorica and died instantly, police said.
One year into the Ukraine conflict, Moscow has introduced a VR-controlled Unmanned Aerial Vehicle that is expected to give it additional firepower in the skies.