Sue Fraser from Chippenham in Wilstshire is looking for her uncle and his partner who were at the resort.

She said the couple were about 70 years old.

"My uncle, John Welch and his partner Eileen are staying at the hotel," she told the BBC.

"They're from Corsham, Wiltshire. They are about 70.

"Eileen's son has contacted the hotel. He's waiting for a call back. The hotel says they're missing and haven't been seen since yesterday.

"We've asked them to check the room, see if their stuff has been taken or if it's still there."

Amy Alcock has been in touch with the BBC. She is from Birmingham, UK  and is on holiday in Sousse, Tunisia, with her partner.

She said: "There were grown men who were shook up.  A lot of the staff were in tears.

"I didn't think I would still be here." 

The clinics of Sousse aren't used to dealing with gunshot wounds. 

A quiet, tourist town, it's been severely shaken by this tragedy. 

At the Sahloul University hospital, they're taking in the victims. 

Over twenty are being treated here: one is in intensive care, others waiting for operations on limbs punctured by bullets. Tony Callaghan, from Norfolk in eastern England, was at the Imperial Hotel with his wife - their third time here. 

The attack sent him running from the beach into the hotel, crying out for his wife to take cover. 

One bullet hit his knee. He ended up with a group in one room, barricading themselves in. He could hear his wife outside crying for help. 

Welling up with tears, he tells me he didn't know if he'd see her alive.

While some tourists are continuing their holidays on the beach, others have decided to head home. This was the scene at the Enfidha-Hammamet International Airport in Tunisia a little earlier.

Image source, Reuters

New pictures continue to come in from Tunisia. This shot from news agency Reuters shows that some tourists are continuing with their holidays, and hitting the beach.

Image source, Reuters

Carol Mulhall from Doncaster is waiting for news of her mother Margaret Lamb and husband Dougle Lamb, who were on holiday in Sousse.

"Her phone is just ringing out and the Foreign Office can't give me information," Carol told the BBC.

"It's been fraught this morning. My children and I are her only family and she would have called me to let me know she was OK if she could. 

"I don't know what to do. I'm so scared she's out there and could now be alone and terrified. I want to tell her everything will be OK and I'll get her home."

Ben Brown reports that Tunisian authorities have named the dead gunman as 23-year-old Seiffedine Rezgui, who was an electrical engineering student. They say he was acting alone 

Relatives are appealing for any information on missing couple Denis and Elaine Thwaites, who arrived in Tunisia on Wednesday and may have been caught up in the attack.

BBC presenter Ben Brown at the scene in Tunisia has said increased security guards are now patrolling the beach area in boats.

"Some are saying this sort of increased security is too late as there had already been one attack on tourists in March," he told the BBC News Channel.

The owner of the Marhaba Imperial Hotel near to where the attack took place has said that he thinks the incident will not affect Tunisia's tourism trade in the "long-term".

Injured Briton Tony Callaghan has met up with the BBC's Turkey correspondent Mark Lowen. Mr Callaghan (see entry 12.39) is a member of Norfolk Police staff, and the force said his injuries were not life threatening.

Metropolitan Police Assistant Commissioner Mark Rowley has appealed for anyone caught up in Friday's attack to come forward with information that could help with their inquiries.

He added: "Extra officers are at British airports to support returning travellers and identify potential witnesses."

Information can be passed in confidence to the anti-Terrorist hotline on 0800 789 321.

Image source, AP

This image published on sites associated with Islamic State purported to show the Tunisia gunman - who was referred to by a nom de guerre, Abu Yahya al-Qayrawani.

The first Briton known to have been killed has now been named locally as Carly Lovett from Gainsborough in Lincolnshire.

Mark Stocker, is appealing for help in finding his father and stepmother, John and Janet. 

Speaking to Sky News, he said: "We've spoken to every hospital in Sousse and surrounding areas."