The father of a British tourist has urged anyone with any information on his son to contact police after admitting he is "extremely worried" about his wellbeing.

University history student Gregor Thomson, 21, vanished in the early hours of yesterday morning - less than a full day after arriving in Madrid with rugby club teammates for a weekend trip abroad. Relatives said his last-known location was Diverzo Cocktail Bar in the capital where he became separated from pals.

Dad Murray, from Edinburgh, said today: "No one's heard from Gregor since the early hours of Saturday morning and we're obviously all extremely worried. He had only arrived in Madrid around 9.30am on Friday with rugby teammates for a weekend away.

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"We've been told he became separated from them in a bar called Diverzo Cocktail Bar. They'd obviously had a few drinks so things are a little bit hazy but the people he was with say he wasn't talking to anyone else or doing anything out of the ordinary that might explain a disappearance like this.

"My son is a sensible lad and he's never gone missing like this before. The police are involved and are doing everything they can including trying to get hold of CCTV in the area where he was last seen for clues."

He added: "Gregor was staying in a hostel with the other lads who are also helping out as much as they can. His phone is dead and we don't know if he still has it with him. He had his wallet on him. They are all due to fly back home tomorrow around lunchtime.

"I urge anyone with any information about my son to please contact the authorities as soon as possible. We're just praying for good news." Gregor's cousin Amy Hood added in a social media post: "My cousin Gregor Thomson has been missing since around 1:30am on Saturday the 26th of April. His last known location was Diverzo Cocktail Bar, Calle de Gravina Cocktail Bar, 4 Madrid. Gregor was on holiday with his rugby friends and was separated from the group. He is 21 years old, 6ft 2/3 with dark hair."

Earlier today, Gregor's friend Liv Andrerson wrote on : “"Hi everyone, I am reaching out in hopes of locating my friend who has gone missing in Madrid." She continued: "He is part of a rugby team from and was with his teammates at the bar.

"They all left together. However he returned to the bar on his own to retrieve something he had left. He has not been seen since then. His teammates and captain had been at the police station yesterday (Sat 26th), and the police officially named him as a missing person last night.

"His phone is dead (most likely) and we don't know if he has ID on him or knows exactly where he is, as it was their first day and he does not know Madrid. If anyone has seen him or has any information please reach out immediately. Please share this if you can, to help spread the word. Call 112 for police."

Spanish police could not be reached today for comment. The missing Brit is understood to play for Edinburgh-based Stewart's Melville RFC.