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According to the Guardian, the UK blue-chip index was sent tumbling by a combination of factors, including further turmoil in the banking sector.
Lloyds Banking Group shed 5.2p to 70.9p, while Royal Bank of Scotland and HSBC lost 1.3p and 15p respectively.
Among the other big fallers were mining companies, with Lonmin losing 101p to £13.28, Kazakhmys dropping 31.75p to 347p and Xstrata falling more than 34p to 440p.
Retailer JJB Sports declined by 1.2p to 9.3p after liquidators began selling off more than 25 per cent of the company's shares which belonged to Iceland's Kaupthing.
Altrium Securities commented in a note: "We assume that the banks will continue to support Sir David Jones and [his] team as they seek to salvage some value for JJB's equity holders."
In other news, US president Barack Obama arrives in the UK tomorrow to take part in the G20 summit.
