After a deadly shooting on a METRO bus and a mace incident on a METRORail, police say safety is their top priority, but they ...

HOUSTON, Texas – Three people were hospitalized Wednesday afternoon after aerosol mace was sprayed on a Houston METRO train.

An unknown individual sprayed mace on the Red Line at Preston Station Wednesday afternoon, injuring three passengers.

"People were banging on the windows to get people's attention from outside," one passenger said. Elected leaders say it may ...