Japan's government said it would expand the size of funds set aside to recapitalise banks to 12 trillion yen ($131.1 billion) from 2 trillion yen and also announced a 1 trillion yen package to secure jobs. It was not clear how much of the money was new.
Tokyo has already announced a package of economic measures worth 27 trillion yen ($295 billion), which included 5 trillion yen in new spending and featured payouts to families, tax breaks on mortgages and relief for small firms.
"We are working at a very high speed. The size of the economic measures will be worked out until the last minute," Finance Minister Shoichi Nakagawa told a news conference just before the new measures were unveiled.
European Union leaders backed a 200 billion euro ($264 billion) economic stimulus pact, said British Prime Minister Gordon Brown.