Four former Deutsche Bank AG traders charged in the U.K. for manipulating the Euro Interbank Offered Rate will not face trial after Frankfurt prosecutors had decided against extraditing them.

Alexander Badle, a spokesman for the Frankfurt General Prosecutor, said the decision was made after a court ruled that the alleged misconducts had occurred too long ago to be tried, Bloomberg News reported Feb. 23.

The decision comes two years after the U.K. Serious Fraud Office first sought extradition of the traders.

The Frankfurt extradition ruling meant that only six of the 11 bankers accused in the case will go on trial in the U.K. in April, after a French court ruled in 2017 not to turn over ex-SocGen trader Stephane Esper.

The four ex-Deutsche Bank traders are Joerg Vogt, Ardalan Gharagozlou, Andreas Hauschild and Kai-Uwe Kappauf.