Paris prosecutors open criminal inquiry into air quality on Métro

Operator investigated for possible trickery and causing involuntary injuries over pollution levels within network

Prosecutors in Paris have opened a criminal investigation into allegations that pollution in the capital's Metro system is putting travellers' lives at risk.

The operator of the Metro, the RATP, is being investigated for possible trickery and causing involuntary injuries after it was claimed it had deliberately underreported pollution levels and failed to inform passengers about the dangers.