It was a craze which swept the nation, but it seems Norwich was where people were most determined to catch them all in the mobile game phenomenon Pokémon Go.

That's according to Amazon, whose annual report of buying habits across the UK has highlighted Norwich as the capital when it came to snapping up accessories to help hunt for Pikachus, Gengars and Squirtles.

The game was released in July and was the biggest smartphone game of the year. It uses augmented reality, with people throwing Poke Balls to try to catch the virtual monsters.

The report stated: 'Inspired by the Pokémon Go craze of 2016, Norwich residents went wild for Pokémon related products with sales rocketing during the summer months.' They said people in the city were buying the Pokémon Handbook and Nintendo 3DS Pokémon games.

And the company said they also saw a rush from the city from people who were clearly draining their mobile phone batteries while searching for Pokémon, with a sudden surge in people ordering Anker portable battery chargers.

The report also included a regional breakdown of Christmas bestsellers, with Alan Partridge's Nomad named as the top gift in the fictitious broadcaster's home of Norwich.

According to Amazon, the first significant spike in sales of Christmas-related products indicated that Christmas shopping started in earnest on Wednesday, October 19 - 43 days before the first window of the advent calendar was opened.

Christmas sales then peaked during Amazon's Black Friday Sale event, which ran from November 14 to 25.

And, according to Amazon, the top 10 favourite Christmas presents were: Fire TV stick, Now That's What I Call Music 95, Amazon Echo Dot, GHD IV Styler, Five On Brexit Island, The Secret Life Of Pets, Real Techniques Core Collection Kit, Hasbro Speak Out, Nuby Octopus Bath Toy and The Funky Veg Kit.

What is Pokémon Go?

Pokémon Go is an augmented reality game, that challenges users to find and catch Pokémon characters in their real world surroundings.

The games uses GPS technology and as you move around your smartphone will vibrate to let you know you're near a Pokémon.

Once you have discovered a Pokémon you use your smartphone's touch screen or camera to throw a Poké Ball to try and catch it, but if you are not careful the Pokémon can get away.

The game uses your phone's GPS and clock to decide which type Pokémon appear in the game. If you're at the park, grass types appear and if you're by a lake, more water types appear. So if you want to catch 'em all you have to hunt in different places.

Pokémon Go also has gyms and PokéStops based on real-world locations, which create hubs where players can meet.

It was released in July and was the biggest smartphone game of the year.