
As global markets fall sharply, We look at some of the countries affected by financial problems and what their governments are doing to alleviate the crisis.
GERMANY
State-owned savings banks in Germany reported a flood of new deposits as people look for safer accounts which are insured for 100% of their value.
The country's second-biggest commercial property lender, Hypo Real Estate, was threatened with collapse last week after incurring large amounts of bad debt.
The government attempted a bail-out, only for it to collapse on Sunday after a banking consortium withdrew support for the deal. A new bail-out was arranged with guarantees of 50bn euros ($68bn; £38.7bn), 15bn euros more than the first rescue attempt.
The German government has also announced what appear to be unlimited guarantees for private savings. However, it said there would be no legislation to give extra protection to savers.
Chancellor Angela Merkel said those financiers who did "irresponsible business" would be made accountable.
Germany clinches bank rescue deal
ICELAND
The Prime Minister of Iceland, Geir Haarde, has confirmed that negotiations have been going on with Russia for a big loan to support Iceland's banking system.
Mr Haarde said a delegation from Iceland would go to Moscow in the next couple of days to finalise the deal. He thanked Moscow for its offer of more than $5bn in emergency loans.
Iceland's government has taken control of Landsbanki, the second largest bank by value, and has dismissed the board of directors.
The bank, which also trades as the internet bank Icesave, is being taken over by the Icelandic Financial Supervisory Authority (IFSA).
Customers of the Icesave have been warned they will probably have to claim compensation for money held in their savings accounts.
Iceland's parliament has passed emergency legislation giving the government wide-ranging powers to dictate banks' operations.
Mr Haarde said the legislation would help the island avoid national bankruptcy.
Iceland will also offer an unlimited guarantee for all savings accounts.
The Icelandic krona plummeted against the dollar after the government nationalised the country's third-largest bank, Glitnir, last week. By Friday it had lost one-fifth of its value.
The government has agreed measures allowing the banks to sell off some foreign assets to help shore up the financial system.
Trading on Iceland's stock exchange remains suspended for the second day running.
Icesave savers warned on accounts
BELGIUM
The Belgian government has agreed to guarantee bank deposits of up to 100,000 euros ($136,000) - an increase of 80,000 euros.
The country's largest banking group, Fortis, has been in difficulty since it joined two other banks to purchase the Dutch bank ABN Amro, just before the global financial crisis began.
After several failed bail-out attempts, French giant BNP Paribas agreed to buy 75% of Fortis's operations in Belgium and Luxembourg. The two governments will take a minority share of the company, while its Netherlands operation has been nationalised.
IRELAND
Ireland was the first government to come to the rescue of its citizens' savings, promising on 30 September to guarantee all deposits, bonds and debts in its six main banks for two years.
The move initially prompted consternation among some European partners, but several countries have since followed suit.
Cowen defending Irish banks move
UK
Prime Minister Gordon Brown is holding talks with Bank of England Governor Mervyn King on proposals to stabilise the banking system.
UK banking shares have plunged and there are fears that more financial institutions may need government assistance.
HBOS dropped 42%, Royal Bank of Scotland (RBS) fell 39%, Barclays shed 9% and Lloyds TSB was down 13%.
The British Chambers of Commerce (BCC) has warned that Britain is already in a recession, which is worsening and could see unemployment rise by 350,000 by next year.
The UK government increased its guarantee to savers from £35,000 ($62,000) to £50,000 from Tuesday.
The Treasury is said to be considering buying large stakes in Britain's banks to encourage lending. The Northern Rock bank and the mortgage lender Bradford & Bingley have already been nationalised, and two other large groups, HBOS and Lloyds TSB, are to merge.
Banks' share prices fall sharply
SPAIN
Spanish Prime Minister Jose Luis Rodriguez Zapatero on Tuesday increased bank deposit guarantees to 100,000 euros ($136,000) from the current 20,000 euros.
Mr Zapatero told leading banks that the government would take immediate steps to increase deposit guarantees to boost confidence in the financial system.
Spain has been calling for a joint European initiative to tackle the world financial crisis.
NETHERLANDS
The Netherlands trebled the amount of savers' deposits it will protect to 100,000 euros (£77,700; $136,776).
GREECE
The Greek government said on Friday it would fully guarantee all bank deposits of citizens, but an official added that this was a "political commitment" and the banking system was not at risk.
DENMARK
The Danish government and banks on Sunday agreed a crisis plan which removes the ceiling on savings deposit guarantees, to be funded partly by banks and partly by the taxpayer.
RUSSIA
President Dmitry Medvedev announced 950 billion roubles ($36.4 bn) of long term help for banks at an emergency Kremlin meeting on Tuesday.
Russia's two leading stock exchanges were forced to close for several hours, one day after suffering massive falls in value.
Trading on the RTS and Micex bourses was postponed by the country's financial regulator after stocks lost nearly 20% of their value on Monday.
Soon after reopening, the RTS index rose by 0.58% while Micex gained 2.16%. Russian President Dmitry Medvedev called for urgent international measures to combat the global financial crisis in a statement.
"The crisis of the international financial system demands urgent joint action. It's absolutely obvious the time has come for new decisions," said Mr Medvedev.
Falls halt Russian market trading
AUSTRALIA
Australia's central bank has cut its key interest rate from 7% to 6% - a much bigger-than-expected reduction.
The Reserve Bank of Australia said that the sharp cut was justified given the prospects for growth, even though inflation is currently above target.
Prime Minister Kevin Rudd said the move would maintain financial stability and help Australia in "tough times ahead".
The cut, the bank's largest since May 1992, was well received by investors and the stock market rallied.
Observers had only expected the rate to be cut to 6.5%.
Australia slashes interest rates
JAPAN
Japanese shares dropped to their lowest level in almost five years amid growing fears over the widening financial crisis.
SAUDI ARABIA
Shares in Saudi Arabia lost about 8% of their value for the second consecutive day.
Analysts said there was panic in the markets, with investors concerned about the future for banks, and companies exposed to a faltering property market.
The Saudi stock market, the Arab world's largest, has now lost more than 40% of its value this year.
EGYPT
Egypt's main index dropped by more than 16% to its lowest level in two years.
Egypt's stock market has halved in value since May 2008.