Moscow is observing a day of mourning after Tuesday’s metro crash which killed more than 20 people and injured 150 in the Russian capital.<br /><br />People have been gathering at the Park Pobedy station where the train derailed, to pay their respects.<br /><br />The flag on the roof of Russia’s parliament, the Duma, has been flying at half-mast.<br /><br />State investigators say they have arrested two metro workers suspected of safety breaches.<br /><br />Russia’s federal Investigative Committee said a track supervisor and an assistant had been detained. It is thought they failed to properly monitor work carried out on a track switch mechanism in an underground tunnel.<br /><br />This resulted in the train coming off the rails, the committee said.<br /><br />Hundreds of people have come forward to give blood, to help the scores who sustained injuries, many of them life-threatening.<br /><br />“I was profoundly shocked by yesterday’s events, and the only thing I can do is come here today and give blood. It’s the contribution that every healthy person, who wants to help those who were injured, can make,” said Tatiana Tsivlina, a student who volunteered.<br /><br />The crash, in the middle of Tuesday morning’s rush hour, was Moscow’s worst ever metro accident. <br /><br />More than 1,100 people were evacuated from the train, which was stuck between two stations in Moscow’s west, in a rescue operation that lasted more than 12 hours.<br /><br />Russian media have demanded a “transparent” inquiry into the capital’s transport system, and warned against finding scapegoats. <br /><br />Aging equipment and spending cuts have been denounced.
