Detectives investigating the disappearance of Swanage teenager Gaia Pope have released a woman under investigation.

A 19-year-old man and a 71-year-old woman, both from the Swanage area, were arrested on suspicion of murder. They are both known to Gaia.

They have both now been released under investigation.

Search warrants took place at two addresses in Swanage late yesterday afternoon.

Police were at an address in Morrison Road this morning.

It comes as searches to find the teenager, who was last seen a week ago today, continue.

The last reported sighting of Gaia was at an address in Manor Gardens on Morrison Road at around 4pm on November 7. She was said to be wearing a red checked shirt with white buttons, grey and white woven leggings and white trainers.

Senior Investigating Officer Neil Devoto, of Dorset Police's Major Crime Investigation Team, said: "It has been almost a week since Gaia's last confirmed sighting and she has not been seen or heard from since. 

"We have looked through CCTV that covers the Swanage area, including transport hubs, and there is nothing to suggest she has left the area. Her disappearance is completely out of character and, following our extensive enquiries, we sadly now believe that she may have come to harm.

"We have not yet found Gaia and our searches will continue. I would appeal to anyone who has information about her disappearance to please contact Dorset Police.

"Our specially-trained officers have updated Gaia's family and are supporting them at this very difficult time."

Search efforts will continue and have been ongoing since Tuesday in the Swanage area. The search has been supported by the coastguard, NPAS helicopter and volunteers from Dorset Search and Rescue and Wessex 4x4. 

Hundreds of people from the community also joined the search, with an appeal shared widely on social media in attempts to find Gaia. Comedian Russell Brand, who has more than 12 million followers on Twitter, re-tweeted a poster with information about the appeal.

Speaking last week Marienna Pope, Gaia’s sister, described the situation as a ‘waking nightmare’. 

On Friday, police released CCTV footage of Gaia shortly before she went missing. Officers have also been carrying out house-to-house enquiries and vehicle stop checks. 

Anyone with information is asked to contact Dorset Police at www.dorset.police.uk, via email 101@dorset.pnn.police.uk or by calling 101, quoting incident number 9:179. Alternatively contact Crimestoppers anonymously on 0800 555 111 or via www.crimestoppers-uk.org