Anna Timokhina was said to be dissatisfied with her $15 million divorces settlement

The London-based former wife of a wealthy Russian banker has reportedly been arrested after allegedly trying to bribe police to launch a financial investigation into her ex-husband.

Anna Timokhina, 43, is said to have received about $15 million in a settlement after divorcing Alexander Timokhin, 48, last year, but was dissatisfied with the sum.

Ms Timokhina recorded her luxurious lifestyle in an Instagram account is and is known to drive a drive raspberry-colour Bentley Continental GT and black Rolls-Royce Phantom.

She was reported to have attended a society event with other prominent Russians in London last month.

She allegedly travelled to St Petersburg and offered $10,000 in hundred-dollar bills to a senior police officer at an economic security and anti-corruption unit on Friday last week,