COPS are hunting for a “masked man” who reportedly released gas on trams full of passengers. Tram users were left scared ...

A man suspected of releasing a noxious gas on trams in Greater Manchester has been arrested after several passengers were ...

Louisiana used nitrogen gas to put Jessie Hoffman Jr., 46, to death Tuesday evening in the state's first execution in 15 ...

Louisiana executed a man convicted of murder with nitrogen gas on Tuesday evening, capping a raging legal battle that ended ...

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 ...

There have been multiple reports of a man in a mask 'letting off gas' on Metrolink trams in Manchester in recent days, the ...

A Plattsmouth man is accused of robbing a Hy-Vee gas station in Omaha while wearing a surgical mask, according to the Douglas ...

It does not necessarily reflect the view of The Herald. Transport bosses ay they are working with police to investigate reports of a 'man in a gas mask' on the tram. Passengers raised concerns, with ...

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 ...

It was the fifth time nitrogen gas was used in the US after four executions by the same method — all in Alabama.