Paris - Desperate new measures by governments in Europe and North America to stabilise the financial system failed to stop panic selling that swept global markets Monday amid deepening gloom at the scope of the banking crisis.
Nothing seemed to stop stock markets taking, in many cases, record falls.
European Union leaders vowed in a joint statement to "take whatever measures are necessary to maintain the stability of the financial system" and the US Federal Reserve said it would pay interest on bank deposits for the first time in a bid to increase liquidity.
Even the €50bn bailout of German bank Hypo Real Estate (HRE) and takeover of Dutch-Belgian bank Fortis by French giant BNP Paribas did little to ease turmoil.
"There is all-out panic," said Adrian van Tiggelen, ING senior strategist in The Hague.
New York's Dow Jones index skidded below 10 000 points for the first time since October 2004 as it quickly lost five percent after the open.
London and Paris nosedived by more than eight percent and Tokyo closed at a new four year low.
"The markets are extremely volatile," said Laurent Saint Aubin, the veteran Paris-based head of the Aurel brokerage's traders. "Flutuations like this within a single day, that's pretty rare," he added in front of a screen of red.
In a round-the-world rout, Russia's RTS stock market closed down 19.10%, Indonesian shares fell 10% and trading in Brazil's stock market - Latin America's biggest - was twice suspended after massive losses.
Doubts over the effectiveness of the $700bn US rescue package and the European measures all hit confidence, analysts said.
After a summit of the EU's big four leaders in Paris at the weekend failed to bring about a significant breakthrough, member states' leaders issued a joint statement on Monday vowing to defend banks.
The declaration said governments would defend financial stability by providing "liquidity support through central banks, action to deal with individual banks or enhanced depositor protection schemes."
"While no depositors in our countries' banks have lost any money, we will continue to take the necessary measures to protect both the system and individual depositors," it added.
"In taking these measures, European leaders acknowledge the need for close coordination and cooperation," according to the text, which French President Nicolas Sarkozy read out on the steps of his office in Paris.
However European governments appeared divided on whether guaranteeing all deposits was the best way to safeguard confidence, and the EU commission called on member states for better coordination.
Denmark, Portugal and Iceland guaranteed deposits, emulating Germany on Sunday and Ireland and Greece last week, adding pressure on other European governments to follow suit.
The German finance ministry said the value of its guarantee was "significantly more than one trillion euros."
British Prime Minister Gordon Brown called a meeting of his "economic war cabinet". Finance minister Alistair Darling said the government would consider extending insurance guarantees.
Amid the turbulence, the euro fell to a 13-month low of $1.3551. Oil prices slipped below $90 a barrel amid fears of a global downturn.
Famines
International Monetary Fund chief Dominique Strauss-Kahn said the IMF's upcoming World Economic Outlook would show a marked fall in growth and warned the crisis could trigger famines in Africa and Latin America.
"The consequences may be extremely serious because they will be counted in terms of famine or malnutrition in children."
The turmoil emerged after the collapse of loans to would-be US homebuyers with dark credit histories and caused a chaotic chain reaction, revealing how cheap credit throughout the financial system had created a massive bubble.
The US government agreed Friday to buy up $700bn of bad mortgages and other assets from banks, freeing them up to start lending again. But President George W. Bush has warned the impact will not be felt immediately.
In Belgium, trading in shares of Fortis were suspended, the day after BNP Paribas took a controlling interest in the troubled finance group under an emergency deal with the Belgian and Luxembourg governments.
Central banks continued to pump tens of billions of dollars into interbank money markets that are now essentially on life-support from state institutions because commercial banks are too frightened to lend to each other.
In a bid to increase liquidity, the US Federal Reserve said it would begin to pay interest on bank deposits for the first time and expand its refinancing operations for commercial banks to $600bn.
Meanwhile Bank of America said it was ready to spend up to $8.4bn to restructure the loan portfolio of mortgage giant Countrywide after settlement of a lawsuit targeting the firm's "predatory" lending practices.
The bank said the programme was designed to help borrowers who financed their homes with high-risk subprime loans serviced by Countrywide, which it acquired in July.
- AFP