50 evacuated after inhaling mystery substance in Milan

(ANSA) - ROME, SEP 4 - Some 50 people were evacuated from an office block in Milan Monday after inhaling a mystery substance that has so far caused only minor symptoms in 37 people, local health police said.
    The incident happened on the premises of an online clothing retailer called Yoox-Net a porter.
    None of the firm's 37 staff has been hospitalised, fire services said.
    They suffered burning sensations in their eyes and throat but on the spot medical treatment was sufficient, said the fire services.
    The other 13 people work in other offices in the tower block.
    (ANSA).