U.S. Treasury Secretary Timothy Geithner said on Wednesday that Group of 20 nations need to boost spending for as long as necessary to counter a severe financial crisis.

We believe it is important for G20 nations to commit to substantial and sustained actions for a period that matches the likely duration of the crisis, Geithner said in prepared remarks ahead of a weekend meeting in southeast Britain of G20 countries.

He said it was also vital take decisive actions to strengthen the financial regulatory system and pledged to lay out more details of U.S. actions for doing so before another G20 gathering in April where political leaders will try to agree on how to bring a global recession to an end.

(Reporting by Glenn Somerville, Editing by Chizu Nomiyama)