* CEE central banks in unprecedented verbal intervention
* Cen banks say currency falls not backed by fundamentals
* Currencies jump, forint by up to 3.6 pct on the day
* More action needed to support forex in longer term
By Jan Lopatka and Krisztina Than
PRAGUE/BUDAPEST, Feb 23 (Reuters) - Central European policymakers took the unprecedented step of joint verbal intervention to support their currencies on Monday, saying a sharp drop in recent months did not reflect economic reality.
Hungary also left its interest rates unchanged in what economists called the region's first action to staunch a selloff that has bled up to a third of currencies' value and wreaked havoc among borrowers.
Regional currencies jumped after the statements before giving back some of the gains and analysts said the central bankers' words would need to backed up by concrete actions to underpin the currencies in the longer term.
"At last markets have got what they were looking for - the first ever coordinated regional comments from central banks in CEE," said Simon Quijano-Evans of brokerage C.A. Cheuvreux.
After investors turned sour on the region last week over media reports of financing imbalances in the region, Central bankers from Budapest, Prague, Warsaw and Bucharest said in simultaneous statements the currency drop had been overplayed.
"There are regional risks, when central and eastern Europe is treated by some reports as the sub-prime of Europe," said Isarescu said Romanian central bank governor Mugur Isarescu.
"Even though we are in a position to have all the data that shows this is not true, the perception is created and must be addressed as a risk."
Czech central bank Governor Zdenek Tuma said markets should differentiate between countries like Latvia, which are in bigger trouble than say, the Czechs, and a debate on aid for the region could help make those distinctions clear.
He also said the four central banks were communicating more closely than normal and did not rule out joint action.
"We share the opinion that the currency swing in a number of countries does not correspond to the real economic situation," Tuma told Reuters in an interview.
And in Poland, whose zloty has been one of the worst performing emerging markets currencies, the central bank said it was ready to act.
The coordinated move boosted the currencies. The Czech crown <EURCZK=>, Hungarian forint <EURHUF=> and Polish zloty <EURPLN=> each jumped by about 1 percent to the euro after the comments and around 3 percent over Friday's close, clawing back from steep losses from last week, but later gave back the part of the gains made after the verbal interventions.
A collapse in overseas demand for the goods produced in the export-heavy region has caused thousands of job losses, while the credit crunch has hit domestic consumption, and pinched governments and banks struggling to refinance debt.
Investors have dumped stocks, bonds and currencies, with the latter causing debt costs and even principle to mushroom for Hungarians and Poles who took euro and Swiss franc loans when the forint and zloty were stronger.
Some policymakers and states including Austria -- whose banks are heavily exposed to central Europe -- and British Prime Minister Gordon Brown have called for aid to the region.
WORDS NOT ENOUGH
Despite Monday's gains, the zloty and forint are still down 11 percent for this year against the euro, with the Polish currency having lost about a third of its value since last July. The leu is down 6 percent, and Czech crown 5 percent.
Economists said the central banks would have to support their talk with action if they wanted to halt the slides.
"Obviously, we are going to have to see concrete action now too, and that could come in the form of a rate hike by the (Poles) to start with in our view, together with some sort of coordinated fx intervention if currencies weaken again, which is likely," said C.A. Cheuvreux's Quijano-Evans.
Analysts said a backing-up of the central bank talk by European authorities would also help stem the slide.
"We don't believe that this solves the problem completely but it is an important step to restoring normality, especially if the European Central Bank or the European Commission back these efforts," said Bartosz Pawlowski, a strategist at TD Securities.
The ECB did not comment. One move could be for central banks to slow interest rate cuts despite the swift drop in growth, although analysts said investors' low confidence in the region mean higher rates will not lure them back quickly.
Hungary left rates at 9.5 percent on Monday after 200 basis points in cuts since an emergency 3 percentage point rise last October. Governor Andras Simor said a worse risk assessment of Hungary was a factor in the decision. (Editing by Toby Chopra)