A Berlin neighborhood was overrun with 1,638 officers and special forces personnel in a pre-dawn raid on 20 apartments and a number of vehicles and other venues.
German police were in search of the 18th-century jewels taken a year ago from the Green Vault museum in Dresden.
Newser reports three German men in their 20s with links to organized crime were arrested.
But, alas, the stolen art treasures failed to be found.
Members of the same Remmo 'Lebanese mafia' family were convicted in early 2020 for theft.
They stole a 220-pound Canadian gold coin worth $4.45 million from a Berlin museum in 2017; it has not been found.
Authorities fear for the jewels' fate.
