Police in a Boston suburb have arrested a man who they say entered a courthouse while wearing a gas mask and tactical gear ...

Wearing the gas mask, helmet and tactical boots, Akerberg allegedly sprayed court officers, a police officer from Stoneham and a prosecutor while punching and shoving people, according to prosecutors.

Some fella was on the tram with a gas mask letting off some gas and everyone had to get off,' one person wrote online. Another added: 'I was on it, was sat across from him and watched him twist ...

Passengers have complained of a man in a gas mask unleashing a noxious substance on several trams, as people report hearing a “hissing” noise. Passengers on services on the Metrolink in Bury ...

COPS are hunting for a "masked man" who reportedly released gas on trams full of passengers. Tram users were left scared after the gas mask-clad man reportedly discharged a mystery gas on board ...