UPDATE 1-Market turmoil will hit global growth-UK's Darling

(Updates with additional comment, background)

WASHINGTON, Oct 20 (Reuters) - The current turmoil in financial markets will hurt growth around the globe but the full effect the crisis will have is still hard to quantify, British finance minister Alistair Darling said on Saturday.

In a statement to the International Monetary and Financial Committee at the annual meetings of the IMF and World Bank, Darling said the initial impact of the credit crunch was already apparent in the financial sector.

"The broader effects are still uncertain and the impact on the world economy can only be fully quantified with the passage of time," he said. "The international uncertainty will have an effect on growth right across the world."

Darling last week was forced to revise down his forecast for economic growth in Britain to 2 percent to 2.5 percent next year, but he said that he expected a rebound in 2009.

"It is estimated that the economy will remain resilient and return to its trend growth path in 2009," he said.

So far, the financial market troubles that started as a consequence of reckless lending in the United States but which have spread to many other parts of the world, causing a run on a bank in Britain last month for the first time in more than a century, appear to have left the economy unscathed.

Data on Friday showed the British economy grew a stronger than expected 0.8 percent in the third quarter.