Conditions for RSA are improving after a tough couple of years

Operating profits at the group jumped to �488m from �241m, compared to the same period last year.

As well as a strong performance from its core UK, Canadian and Scandinavian markets, the group also managed to reduce risks at its US business.

The company had enjoyed a "very good nine months," CEO Andy Haste said.

The UK's second largest insurer said it had managed to unveil strong profits despite floods in the UK and India, storms in Canada and Scandinavia and the recent US hurricanes.

Underwriting profit

RSA also said that its overall combined ratio - the amount of money spent paying out on claims and in costs for every �1 of premiums taken in - improved to 96.7% from 101.9%.

A figure under 100% represents a profit on underwriting.

Looking ahead, the group warned Hurricane Katrina would result in a �14m loss, lower than previous forecasts of �25m, while Hurricane Wilma would have an impact of �10m.

"I am confident...we can continue to deliver sustainable profitable performance," Mr Haste said, adding that he expected the group to beat its forecasts for a combined ratio of 96% to 97% for the year as a whole.

Royal & Sun has been fighting to get back on track since suffering an underwriting loss of �641m in the US two years ago.

The setback was followed by a restructuring drive with job cuts on both sides on the Atlantic.

That has helped boost profits despite the business being hit by asbestos claims and compensation claims in the US.