Rescue workers continued to search for missing at a train crash site in the north of Greece on Friday as the death toll reached 57, Reuters reported.
According to the report, drone views showed a thick fog engulfing the site, where cranes had cleared a large part of the mangled wreck.
Carriages were thrown off the tracks, crushed and engulfed in flames when a high-speed passenger train with more than 350 people on board collided head-on with a freight train late on Tuesday. They were on the same track.
Authorities hoped to wrap up recovery work on Friday but it was still inclear how many were missing.
“The operation is under way, it was planned to end today, we hope it will end today but there’s always the unknown factor,” a fire brigade official said.
Amid shock and sorrow in a country where three days of national mourning have been declared over the crash, families and friends said they wanted answers over how such a crash could have happened.
Protests were held in Athens following the incident and are expected to be organized in other cities.