British shares fall due to tensions over Brexit deal, Italy's budget

British shares sank fell more than 1 per cent to their lowest since March on Tuesday as a broad sell-off hit stocks across Europe, caused by a toxic mix of weak results, jitters over geopolitical tensions, Brexit, Italy's budget and cooling markets overnight.

The FTSE 100, on track for its worst monthly performance in a decade, was down 1.1 per cent by 0941 GMT, after breaching technical support at 7,000 on the open.

European shares fell to their lowest levels in nearly two years after a disappointing batch of third-quarter results, particularly in the tech sector.

Pressure also returned after Asia's rally cooled amid renewed fears about the impact of the U.S.-China trade dispute, geopolitical tensions and the strength of earnings as peak earnings season arrives.

"We're back to where we were. We had a week of respite and now the market's resumed its focus on negative factors more than anything else," said Mike van Dulken, an analyst at Accendo Markets.

St James's Place sank to its lowest since December 2016 after results revealed a slowdown of inflows in the third quarter, even as the wealth manager reported funds under management reached a record. Shares were down 4.3 per cent.

The net inflow of funds rose 15 per cent in the first nine months, compared with 21 per cent growth in the first half.

"Q3 must have been a lot slower to average out. The growth of inflows in the third quarter must have slowed considerably," van Dulken said.

"It all plays into consumer and investor uncertainty," he said, pointing to weakness in Hargreaves Lansdowne and Scottish Mortgage Investment Trust, which was the third biggest loser on the main board, down 4.5 per cent.

The financial sector knocked 21 points off the index. Energy stocks were hit by lower oil prices.

Gambling stocks were under pressure again after the Financial Times reported that UK chancellor Philip Hammond is considering cracking down on foreign taxes. GVC Holdings were bottom of the FTSE, down 5.4 per cent.

Whitbread Plc fell 3.1 per cent after the owner of Premier Inn hotels reported slower revenue growth in the first half amid growing economic and political uncertainty in Britain.

The FTSE 250 midcap index was down 1.8 per cent at its lowest since February last year, led by financials.

Among the few risers was Travis Perkins, Britain's largest supplier of building materials, which reiterated its full-year forecast after solid demand from trade buyers offset the pressure in Wickes, its UK DIY business.