How the Hatton Garden raid compares to Britain's biggest heists

The value of the goods stolen in the Hatton Garden burglary has now reached £29m.

Here are seven of the biggest heists in UK history, along with the value of the goods stolen at the time.

:: Knightsbridge Safe Deposit Centre, London - £60m, 1987

Two armed robbers asked to rent a safe deposit box and produced handguns after they were shown to the vault - and ended up making off with an estimated £60m hoard.

Valerio Viccei, who led the robbery, fled the country afterwards and was only arrested after returning to England to ship his Ferrari Testarossa to Latin America.

He was sentenced to 22 years in prison.

:: Securitas depot, Kent - £53m, 2006

A gang kidnapped a Securitas manager and his family to gain access to the company's depot and then tied up the 14 employees inside.

Tens of millions of pounds were loaded into a 7.5-tonne lorry.

Lee Murray, who masterminded the robbery, fled to Morocco shortly afterwards.

He is currently serving a 25-year sentence in the country.

:: Graff jewellers, London - £40m, 2009

A gang of four men wore make-up and suits to pose as legitimate customers and pulled guns on staff once they were inside the Mayfair store.

The group's ringleader took a shop assistant hostage and fired at a security guard as he made his escape.

They were eventually tracked down by police and jailed for up to 23 years.

:: Northern Bank, Belfast - £26m, 2004

This carefully planned robbery hugely disrupted the peace process under way in Northern Ireland at the time.

Masked men held the families of two workers at gunpoint on a Sunday evening, and gave the employees precise instructions on what to do when they went to work the next day.

Gang members were let into the bank's headquarters the following evening and cash was loaded into crates and picked up by a white van - which came back to make a second collection.

It is estimated that 30 republicans, including top IRA personnel, with involved with planning and carrying out the operation.

The robbers have never been brought to justice and most of the stolen money is still unaccounted for.

:: Brink's Mat, Heathrow - £26m, 1983

The oldest man to be involved in the 2015 Hatton Garden raid was also involved in the armed raid on a warehouse at Heathrow Airport.

Brian Reader was jailed for eight years over the £26m robbery in 1983.

The gang he was a part of, aided by a security guard, had been expecting to find £3m in cash - but instead uncovered three tons of gold bullion.

Still to this day, a significant proportion of the stolen bullion has not been found.

:: Graff jewellers, London - £23m, 2003

A gang of jewellery thieves were nicknamed "The Pink Panthers" after this particular heist - also at a Graff store in London.

Two of them posed as wealthy would-be customers and persuaded staff to open doors before helping themselves to 47 items of jewellery.

One of the robbers was overpowered at the scene and another was later arrested, but only a fraction of the diamonds were recovered.

In a scene reminiscent of the 1975 film The Return of the Pink Panther, police investigating the crime discovered a diamond ring worth £500,000 hidden in a pot of face cream.

:: Hatton Garden Safe Deposit company, London - £29m, 2015

The gang ransacked 73 safe deposit boxes after using a drill to bore a hole into the vault wall and made off with gold, diamonds and sapphires.

Their raid was carried out over the Easter bank holiday weekend in the heart of London's diamond district, and the majority of the jewellery and gold stolen has not been recovered.

Seven men were convicted in March last year over the break-in and jailed for terms of six and seven years.

They face longer behind bars if the stolen goods are not returned.