London's 'Gherkin' office tower, a landmark on the city's skyline, has been sold to Safra Group, the investment giant owned by Brazilian banker, Joseph Safra.

The building, officially known as 30 St Mary Axe, was put up for sale in July for about £650m after German property firm IVG Immobilien struggled with debts linked to its own purchase of the building in 2007.

The new purchase price was not disclosed, but the Financial Times reported it had been sold for £726m, citing sources. 

IVG had bought it from insurance group Swiss Re for £600 million just prior to the global financial crisis.

Standing at 180 metres (nearly 600 feet) tall, the office building looks like a glass gherkin, rising out of the City of London financial district.

The building has featured in a number of films including boy wizard adventure "Harry Potter and the Half-Blood Prince" and Woody Allen's London-set melodrama "Match Point".

Last month, Chiquita agreed to a $682m takeover by the Safra group and Brazilian juice maker Grupo Cutrale.

The deal was seen as a victory for Joseph Safra and orange juice baron Jose Luis Cutrale, who joined forces to add Chiquita to their tropical fruit business. 

Both business men fought for almost three months to win control of Chiquita, which rebuffed their three previous takeover attempts and sought to merge with rival Fyffes.