A SCOTS holidaymaker has told how he used tablecloths to treat people wounded in the Tunisian beach massacre which killed 38 people, including it is believed, around 30 British tourists.

Brian Harrison, a former soldier from Aberdeen, was on a two-week break with his wife when the terror attack took place in Sousse.

The 56-year-old told how as soon as he found out what had happened he rushed to help, using whatever came to hand to treat the wounded and support survivors.

He said: "I couldn't find any first aid kits so I grabbed a cloth off the table.

"There were people who just needed someone to speak to, who could explain what was going on.

"I ended up speaking to a British girl who had shrapnel wounds and a badly broken arm. She asked if I could go to the hospital with her, so I did."

Mr Harrison's wife, a surgical nurse, also helped survivors, with the couple later contacting the Tunisian Red Crescent to offer assistance as first aid-trained English speakers.

The couple have now been flown back to the UK

As more UK victims of the attack are confirmed, David Cameron has announced that a minute's silence will be held across the country to remember those killed.

The silence will take place on Friday at noon, a week after the massacre which killed 38 people including up to 30 Britons.

Announcing the minute's silence, Mr Cameron told MPs: "I know the whole country will want to share in a moment of remembrance."

The Prime Minister, who earlier described the "existential threat" posed by IS as "the struggle of our generation", told the Commons: "We will not give up our way of life or cower in the face of terrorism."

The number of British victims confirmed dead reached 18 today but it is expected to rise in the coming days once formal identifications are complete.

Three Irish people are also among the dead.

Four Britons seriously injured in the attack were being flown home for treatment on a military transporter as local officials announced the arrest of suspected members of the network behind the attack.

Among those evacuated is John Metcalf, 43, who was shot in the abdomen. He has been treated at the same hospital as Allison Heathcote, who was hit five times and remains in a medically induced coma.

Mrs Heathcote's husband, Philip, 52, last night became the latest confirmed British victim.

Stuart Cullen, 52, from the Lowestoft area in Suffolk, also died in the attack, Suffolk Police have confirmed.

It is believed he died instantly and was with his wife at the time. She suffered injuries but survived and has returned to the UK.

On Monday Downing Street also said all British nationals injured in the attack will be returned to the UK for treatment within the next 24 hours.

Earlier, Home Secretary Theresa May laid flowers on the beach near Sousse where gunman Seifeddine Rezgui shot at people near the Imperial Marhaba and Bellevue hotels.

Amid growing frustration among families of the missing at the lack of information, and with at least six families desperate for news, holiday firms Thomson and First Choice issued a statement saying they were "aware that some families continue to wait for news of their loved ones".

It added: "We would like to reassure those in this position that we are doing everything we can to provide information as soon as we are able to do so."

It was understood that by last night Holly Graham, 29, from Perthshire, had still not heard about her parents, William and Lisa Graham.

Others missing include John Welch, 74, and his partner of eight years Eileen Swannack, 70, both from Wiltshire. The couple were staying at the Hotel Riu Imperial Marhaba, one of the hotels targeted by the gunman, and have not made contact since the attack.

Angie and Ray Fisher, from Leicester, have not spoken with family members since they left on holiday.

John and Janet Stocker, from Crawley, are also missing, along with Blackpool couple Denis and Elaine Thwaites.

Family members had been told they were alive but injured and in a Tunisian hospital but now fear the information is inaccurate.

Meanwhile, The British Red Cross has launched a support line to help people affected by the Tunisian terror attack.

The dedicated telephone line, run by the charity and commissioned by the Foreign Office, will offer practical advice and emotional support to anyone affected by the recent events.

It launched last night and will run daily for as long as the service is needed, the Red Cross said.

The British Red Cross has also sent four psycho-social support volunteers to the scene as part of a Foreign Office delegation.

The British nationals the organisation has been asked to assist are likely to have experienced or witnessed extremely distressing events, it said. They could include those who were on the beach at the time of the attack, and may have been injured, bereaved, or witness to the deaths of others.