Five of London's best April Fools' Day jokes

Warburtons planned to 'sandwich' the Gherkin. Credit: Warburton's

The traditional April Fools' Day gags have spilled out today with London the focus of some of the best jokes.

Here are some of the funniest examples:

1. Warburtons to "sandwich the Gherkin"

Warburtons said they were excited to announce plans to "sandwich" the Gherkin with their new offices.

The company said they were still finalising the expansion plans but wanted to share the news with their fans.

2. Royal Albert Hall to build retractable roof

The Hall released a photo of what was apparently meant to be the original plans for a roofless venue. Credit: Royal Albert Hall

The world-famous landmark announced plans to install a retractable roof in its biggest transformation since its construction in 1871.

Work on the building was reportedly due for completion in 2021 to coincide with the venue's 150th birthday.

It was claimed that the Hall could play host to a number of new events including grass court tennis and platform diving.

3. Addison Lee unveil the AquaCab for use on the Thames

Addison Lee said the new cars would be fitted with custom-designed nautical navigation satnav. Credit: Addison Lee

The UK's biggest minicab company claimed to have commissioned experts to develop a new amphibious minicab for use on the Thames.

Addison Lee said the new vehicles would enter service in the summer of 2015 as a "logical evolution of the Addison Lee success story.”

4. Queen approves fracking in Buckingham Palace

The tabloid featured a traditional joke in its paper today. Credit: The Sun

The Sun claimed the Queen had given her "royal seal of approval" to start fracking in the grounds of Buckingham Palace.

5. MPS find huge sink hole in Thames

The Marine Policing Unit claimed to have discovered a huge sink hole in the Thames overnight in one of the more far-fetched jokes.