Chinese-built metro trains in Hanoi, Vietnam are so poorly constructed that passengers must use umbrellas inside due to leaking roof

Original review summary

The review says the incident occurred on May 19, 2025, and that water dripped inside one train because of a faulty air-conditioning system—not rain leaking through the roof. It reports that the company called it a “rare technical error” and found no evidence of structural flaws or poor construction.[S1]