All four paintings stolen from the Bührle collection in Zurich back in 2008 are now back on Swiss soil.

Police have confirmed that the last work to be tracked down—a Degas—was actually found a few months ago.

The work, called “Count Lepic and His Daughters,” is worth 10 million francs.

Police say they did not release the information earlier so as not to compromise the investigation.

Four suspects have been arrested in Serbia.They are thought to be part of the infamous Pink Panther crime gang, specializing in high end robberies.