Police during the Tuesday operation.
Bashkim Osmani was arrested in Porec, Croatia on Tuesday as part of the international police operation.
One of the scenes of Tuesday's operation.
Eight arrests were made in Mallorca, there having been a simultaneous police operation in six countries.
The operation is currently ongoing.
The target is an international organisation responsible for money laundering in various parts of the world.
A Swiss private bank involved in the three-year criminal probe was fined for a reporting failure.
Some 400,000 euros cash have been seized.
At least one million euros were laundered.
Michael Brown, the financier who was a donor to the Liberal Democrats, faces money laundering charges in Majorca.
There have been some well-publicised cases, such as Alexander Romanov and the Mar i Pins Hotel in Paguera.
Romanov accepted a sentence of three years and nine months plus fines which totalled 4.2 million euros and the 1.6 million euros he laundered.