26 people treated for ammonia exposure after commercial building gas leak in Virginia: Officials ABC NewsAmmonia leak sends 26 to the hospital in Sterling WTOP26 People Sent to Hospitals After Ashburn Ammonia Leak Loudoun NowAmmonia leak in Virginia sends 26 to hospital, four critically injured FOX 5 DCUPDATED: 26 taken to the hospital after mass casualty incident at Sterling manufacturing plant InsideNoVa