On 3 May 2021 at 22:25 CST in the borough of Tláhuac,[13][2] an elevated section of Line 12 collapsed between Olivos and Tezonco stations, causing train cars to fall.[12][15][16] At least 23 people died and 70 others were injured, including 65 hospitalized victims, of whom seven were in serious condition.[17][18][13] The overpass was about 5 metres (16 ft) above the road, but running over a concrete median strip, which resulted in fewer casualties to motorists on the road.[13]