A woman in Mexico City delivered her baby on the way to the hospital on Tuesday, while riding the subway. The city's mayor then took to Twitter to announce the baby would ride free for life.

The baby was not exactly born on the subway itself, but in one of the subway stations. If she had been in a car itself, that would have been by far the weirdest thing to happen on a moving metro train. And that's counting that time some guy licked his shoe clean.

Photo Credit: Tweet 1, Tweet 2, Tweet 3, Tweet 4