Rescue personnel work at scene of subway accident in Mexico City
Rescue personnel work at scene of subway accident in Mexico CityREUTERS/Quetzalli Nicte-Ha

At least one woman was killed and dozens were injured as two subway trains collided between two stations in Mexico City on Saturday, The Associated Press reports.

Mayor Claudia Sheinbaum said on her Twitter account that the accident happened on Line 3 of the capital’s Metro system. She did not specify what caused the crash between the Potrero and La Raza stations.

Sheinbaum said one woman was killed and 57 people injured, who were taken to seven hospitals. Four people were trapped in the wreckage for a time, including one train driver, who was reported in serious condition. Late in the afternoon, the mayor said 26 of the injured had been released.

President Andrés Manuel López Obrador said on his Twitter account that the federal government was supporting the city officials dealing with accident.

The Mexico City subway system has 226.5 kilometers of track and 195 stations. It serves an average of 4.6 million passengers every day, noted AP.