RNLI lifeboat Cybil Mullen Glover
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RNLI film shows sea search conditions

4 January 2014 Last updated at 18:07 GMT

The RNLI has released video footage of the conditions faced by one of its lifeboats while searching for a missing Devon teenager on Friday.

The Plymouth vessel Cybil Mullen Glover was involved in an initial search for Harry Martin in the near the River Yealm.

The 18-year-old has not been seen since leaving his home on Thursday to take photographs of stormy seas.

More than 120 volunteers joined the search for him on Saturday, which has now been stood down.