The Deutsche Bank headquarters in Frankfurt are pictured
BaFin), has put its Deutsche Bank probe on top of its priority list REUTERS

Germany's banking watchdog, the Federal Financial Supervisory Authority (BaFin), has made an investigation into alleged foreign exchange market fixing at Deutsche Bank the top of its priority list.

According to a report by German newspaper Der Spiegel, BaFin has put the case at the top of its priority list and moved it into "special investigation" category.

The regulator will accordingly intensify its inquiry and open doors into new lines of investigation.

On top of this, it allows supervisors to analyse chats that allegedly took place on a trading platform used by currency traders and those involved in the Libor fixing scandal.

The German lender told IBTimes UK that "Deutsche Bank has received requests for information from regulatory authorities that are investigating trading in the foreign exchange market. The bank is cooperating with those investigations, and will take disciplinary action with regards to individuals if merited."

BaFin declined to comment.

The daily $5tn (£3.1tn, €3.7tn) currency market is the largest in the financial system and is pegged to the value of funds, derivatives and products.

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Morningstar estimates that $3.6tn in funds, including pension and savings accounts, track global indexes.

On 15 January, Deutsche Bank suspended one New York based trader who deals in Argentinian pesos, after allegedly finding emails that indicated attempts to manipulate benchmark foreign exchange rates.

FX rates are calculated are compiled by using data from a variety of submitted provisions on a number of platforms, such as Thomson Reuters.

It is then calculated by WM, a unit of State Street, to form WM/Thomson Reuters at 1600 GMT daily.

Independent industry calculation say that Deutsche Bank has been the biggest foreign exchange trader in the world for nine consecutive years.

Meanwhile, the bank has already spent millions of dollars going through traders' emails and chat sessions looking for specific dates, phrases and keywords in a bid to root out evidence of wrongdoing.

On 20 January it also unveiled a plunge in profits after stumping up billions of euros in financial scandal fines and litigation fees.

The German lender posted a surprise pre-tax loss of €1.15bn for the fourth quarter after being hit by heavy litigation and restructuring fees as well as a number of fines stemming from lawsuits and other regulatory investigations.