A family has launched an appeal to locate a British teenager who vanished in Tenerife after his phone died.

Jay Slater flew from Lancashire to the Canary Islands for a music festival when he disappeared after he went to stay with people he met during a night out.

During his final call to a friend, the 19-year-old said his phone had only one per cent battery, he was thirsty and he did not know where he was.

His last location shows the Rural de Teno Park - an area popular among hikers.

His friend, Lucy, has been out searching while his mother is flying to the island.

"He's gone on a night out, he's gone to a friend's house, someone he has met on holiday," Lucy told the Manchester Evening News.

She added that their apartment was "in the middle of nowhere".

"One of the people he has met has hired a car out of here, so he's driven them back to his apartment and Jay has gone there not realising how far away it is," Lucy said.

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"He's ended up out in the middle of nowhere. Jay was obviously thinking he would be able to get home from there.

"But then in the morning he's set off walking, using Maps on his phone and ended up in the middle of mountains with nothing around."

Lucy explained that she received a call from her missing friend at 8am on Monday morning when he said he had left the apartment to "catch a bus".

"I've never been so worried in my life.

"I was there all yesterday, a lovely lady messaged me on Facebook and said she had hired a car and would drive me up there", Lucy added.

The 19-year-old was last seen wearing a white t-shirt with shorts and trainers.

He was also thought to be carrying a black bag.