U.S. Treasury yields extended a slide after data showed March U.S. consumer sentiment fell for the first time in four months. Credit Suisse's chief executive said on Friday the bank was working hard to stem customer outflows, although this could take time. The STOXX 600 (.STOXX) index fell 2.21%, while Europe's broad FTSEurofirst 300 index (.FTEU3) dropped 22.85 points, or 1.31%. The U.S. 2-year Treasury yield , which is sensitive to shifts in interest rate expectations, fell to 3.9835% compared with a previous close of 4.13%. The benchmark German 10-year yield fell to 2.099% versus 2.243% previously .

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