BRUSSELS- Smaller European Union states led by Luxembourg on Tuesday pushed to block a plan to strengthen EU financial regulators' grip over money managers ahead of Brexit.

The plan is meant to avoid a situation under which, after Britain leaves the EU, national regulators can offer sweeteners to London-based financial firms.

At a meeting of EU finance ministers, large EU states including France, Germany, Italy and Spain insisted on agreeing the reform before European elections in May.

But smaller states, including Ireland, Denmark, Sweden and several Eastern European countries proposed moving forward with only a minor part of the reform which would give additional but limited new powers to the EU banking watchdog in countering money laundering at banks.

In a televised public debate, they argued there was insufficient agreement among EU states to move ahead with the wider reform, which would strip national regulators of powers to offer tailored arrangements to foreign financial firms.

Germany, France, Italy, Spain, the Netherlands, Austria, Slovakia and Portugal said a deal on the overall package was close and still possible before May.

If delayed it risks being derailed. The European Commission, which proposed the reform in 2017, warned that splitting the overhaul would also weaken the new measures against money laundering.

This would be a "credibility" blow to Europe, Dutch Finance Minister Wopke Hoekstra said during the meeting, reminding his peers of recent money-laundering scandals at several EU banks, including in the Netherlands.

The European Parliament, which needs to agree on the reform, backed the whole package in a vote earlier in January and wants to begin talks with EU governments on the entire overhaul.

Luxembourg said there was no room to find a deal on the overall package as divisions between member states were too broad.

"Lets not fall into illusions," Luxembourg's Finance Minister Pierre Gramegna said.

The tiny state wedged between France and Germany has the euro zone's largest investment fund industry, with nearly 4.5 trillion euros ($5.1 trillion) of assets, twice those of Germany, European Central Bank data show. Ireland is the bloc's second largest market.

The new rules would increase the EU markets regulator's grip over money managers, especially those headquartered in non-EU countries such as Britain after Brexit.

Many asset managers in Luxembourg have headquarters in London and would face stricter supervision if the new rules were adopted.

(Reporting by Francesco Guarascio; editing by John Stonestreet and Jason Neely) ((Francesco.Guarascio@thomsonreuters.com; @fraguarascio; +32 2 287 68 17;))