European stocks tumble led by Italy's shares

European shares shrank on Monday led by the biggest Italian banks, UniCredit SpA and Intesa Sanpaolo SpA, and the country's benchmark index as the Italy's Prime Minister fought to maintain his administration. The benchmark Stoxx Europe 600 Index dropped 0.7% to 310.02 as of 8:05 a.m. London time and It has risen 4.3% this month.