Miguel Mancera, the chief prosecutor in the Federal District, boasts that the murder rate there is now lower than in several states that were previously considered much safer than the metropolis.

联邦区的首席检察长Miguel Mancera骄傲地指出，现在联邦区的犯罪率比以前那些认为比首都安全的州的还要低。

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President Enrique Pena Nieto and Mexico City Mayor Miguel Angel Mancera headed to the scene of the blast.

BBC: Mexico City blast at state oil firm Pemex kills 25

Under the new administration of Mayor Miguel Angel Mancera, they are confident that their proposal will soon become law.

BBC: New Mexico City law punishes animal cruelty with jail

Mexico City Mayor Miguel Angel Mancera said authorities are treating the incident as a missing-person case because so far, there's no evidence the young people were kidnapped.

CNN: 11 young people go missing from bar