Rescuers searching for a submersible in the Atlantic Ocean have said they "don’t know" whether noises picked up by sonar technology from underneath the water are coming from the missing vessel.
Five people – including three British nationals – remain missing after contact was lost with their OceanGate Expeditions submersible last Sunday.
The vessel, named Titan, had been due to complete a voyage to the Titanic shipwreck.
On Tuesday, an internal US government memo revealed that "banging sounds" were detected by search and rescue teams.
• Subscribe to ITV News on YouTube: http://bit.ly/2lOHmNj
• Get breaking news and more stories at http://www.itv.com/news
Follow ITV News on Facebook: https://www.facebook.com/itvnews/
Follow ITV News on Twitter: https://twitter.com/itvnews
Follow ITV News on Instagram: https://www.instagram.com/itvnews/
