In a message published on his Twitter account, the Cuban Foreign Relations minister expressed his solidarity with the families and friends of the victims of the incident, which so far has recorded 23 deaths.
According to press reports, two wagons of Line 12 of the subway collapsed last night on one of the main avenues of the Mexican capital.
According to official data, there are also 70 injured.
It is the biggest tragedy in the city since the 2017 earthquake, according to local authorities.
The accident occurred at Olivos station, when the rail overpass collapsed just as the subway passed through it.