AG Barr has announced it is to launch an energy drink version of Irn-Bru this summer.

Irn-Bru Energy will be made from a new formula combining its flavour with taurine, caffeine, B vitamins and the “taste of an energy drink” which will also come in a sugar-free version from July 1.

It will contain 32mg of caffeine per 100ml – roughly the same as a medium latte.

Adrian Troy, marketing director at AG Barr, said: “We know there are a huge number of Irn-Bru fans who love energy drinks, so we’re excited to reveal our plans for Irn-Bru Energy.

“Energy drinks are a really fast-growing exciting market and we’re confident Irn-Bru Energy will wake up and shake up energy drink fans in Scotland and beyond.”

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In March, Barr posted a pre-tax profit of £44.5 million for the year to January 26, amid revenue growth up 5.6 per cent to £279m.

The firm said the results were “all the more pleasing” given the Government’s sugar levy, which led to a revamp in the main Irn-Bru recipe.

It is not the first time the brand has gone down the energy drink route with Irn-Bru 32 launched in 2006.

A tweet dating back to 2016 described it as “a limited edition product” adding “never say never” in reply to a fan asking if it was still in production.