Top executives from 13 major African, Asian, European and U.S. banks held talks about capital adequacy, regulatory reform and attempts to revive the global economy at a meeting with Gordon Brown today.

Gordon Brown is hosting the roundtable ahead of a meeting of Group of 20 (G20) leaders in London on 2-3 April.

Bankers at the meeting include Josef Ackermann, chief executive of Deutsche Bank; William Rhodes, vice chairman of Citi; Richard Gnodde, co-CEO of Goldman Sachs International; and Nobuo Kuroyanagi, president and CEO of Japan's Mitsubishi UFJ Financial Group.

Executives from nine countries clutched documents as they walked up Downing Street in groups of two or three for the meeting, which began at about 09:45 and was expected to last for up to two hours.

They are expected to be asked about plans for change in financial market regulation, the need for banks to hold more capital and build up a bigger cushion in future, and tighter regulation of hedge funds.

Alistair Darling, and Adair Turner, head of the Financial Services Authority, will also attend the meeting.

Bankers will be told the broad agenda of next week's G20 meeting and asked for feedback, a person familiar with the matter said.

Executives attending the meeting, according to a list distributed by Downing Street and the Institute of International Finance, were: Alfredo Saenz Abad, CEO, Santander John Varley, CEO, Barclays Baudouin Prot, CEO, BNP Paribas William Rhodes, senior vice chairman, Citi David Mulford, vice chairman int'l, Credit Suisse Josef Ackermann, CEO, Deutsche Bank Andreas Treichl, CEO, Erste Group Bank, Richard Gnodde, co-CEO, Goldman Sachs International William Winters, co-CEO, JPMorgan Chase Investment Bank Nobuo Kuroyanagi, president and CEO, Mitsubishi UFJ Financial David Duffy, CEO, Standard Bank International Peter Sands, CEO, Standard Chartered Alessandro Profumo, CEO, UniCredit Charles Dallara, managing director, IIF.