March 28 (Reuters) - Immediate investor concerns over the banking sector eased on Tuesday, lifting stock prices, with the European Central Bank's supervisory chief saying recent sector volatility underscored the need to step up regulatory scrutiny. Credit Suisse (CSGN.S) shares rose 1.7%. Top U.S. banking regulators said on Monday they planned to tell Congress that the overall financial system remains on a solid footing after recent bank failures, but will comprehensively review their policies in a bid to prevent future collapses. Regional U.S. lender First Citizens BancShares on Monday scooped up the assets of SVB, in a vote of confidence for the battered banking sector that prompted a rally in bank shares. Bailey said the stresses which led to a crisis in confidence in Credit Suisse were down to specific issues in Switzerland's second-largest bank.

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