[1/5] Greek Prime Minister Kyriakos Mitsotakis visits the site of a crash, where two trains collided, near the city of Larissa, Greece, March 1, 2023.
Rail workers, on strike since March 2, have extended their walkout until Friday.
"We could have been there, we could have been on that same train," Aria Laska, 23, told Reuters.
Three more railway workers were detained and accused of disrupting public transport leading to deaths, the semi-state Athens News Agency reported.
"We are together in this trial," Mitsotakis said, adding that young people and their parents had "every right to be angry".