Piercing Noise News Today : Breaking News, Live Updates & Top Stories | Vimarsana

life. and then, suddenly, one day, she was gone. poisoned by carbon monoxide. >> he's like, i couldn't get a pulse! i couldn't get a pulse! i couldn't get a pulse! >> her husband blamed of faulty water heater. police blamed him. >> you don't think this is an accident. >> no. >> there was just one problem. and it was a big one. no one could figure out exactly how he might have done it. >> he's an expert at gases. >> murder or accident? >> did you kill your wife? ♪ ♪ ♪ >> hello and welcome to dateline. hundreds of americans die every year from accidental carbon monoxide poisoning...

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And the culprit behind the mystery illness remains unknown. now, however, for the first time on television, three of the original diplomats to be affected are breaking their silence about what they experienced with permission from the state department they spoke to our andrea mitchell >> reporter: in the winter of 2016, these diplomats were working at the u.s. embassy in havana, cuba their nights at home interrupted by a piercing noise coming from their background. >> i'll just play it for you so you can hear. >> there is a lot worse. >> it was persistent, kind of at the same level all the tim...

By a piercing noise from their backyard. >> it was a lot worse earlier. >> it was persistent, kind of at the same level all of the time. very, very loud. it's nothing you could sit with. >> did anyone else in your neighborhood have this experience at their homes? >> yeah, on our right was another embassy family, and the people on our left and across the street were both canadian embassy employees. in the end all four households were diagnosed. >> in a nearby neighborhood, tina who worked with them was washing dishes. >> i was standing at the kitchen window and all of a sudden i felt like i was...

Havana syndrome. kylie atwood is here in washington with the latest developments. tell us what you've learned about this. >> well, this is pretty stunning news because what it demonstrates that these mysterious attacks we have heard about that started initially in 2016 on u.s. diplomats who were living in cuba are actually continuing and not only just continuing around the world but there's this new cluster of cases we're learning about. as you said, about two dozen u.s. diplomats, u.s. intelligence officials and other government officials in vienna reported they are experiencing symptoms simi...