The Van Gogh museum in Amsterdam said the stolen paintings were found

The works were recovered from the Naples mafia, they said.
The Van Gogh museum in Amsterdam said the works were found during a "massive, continuing investigation" by Italian prosecutors and organised crime officials.
The paintings were taken when thieves used a ladder and sledgehammers to break into the museum.
They were eventually found wrapped in cloth in a safe in a house in the picturesque seaside town of Castellammare di Stabia, near Pompeii.
The works were among assets worth millions of euros seized from a Camorra organised crime group linked to cocaine trafficking, Italian reports said.
(from BBC)

stolen　 盗まれた
recover　 ～を取り戻す → ～を回収する
Mafia　 マフィア、犯罪秘密結社