The arrests came as police this morning raided 25 homes across Sydney and issued 50 warrants in one of the biggest attacks on organised crime in the Australian history.
NSW Police and the Australian Federal Police launched co-ordinated raids across Sydney this morning targeting an alleged drug-smuggling syndicate linked to the family of Kings Cross identity John Ibrahim.
It is understood AFP officers swooped on the Ibrahim brothers as they ate dinner with two other known associates, the Daily Telegraph reports.
The ABC understands that the youngest Ibrahim brother, Michael, was arrested in Dubai this morning and police are now searching the homes of Fadi and John in Dover Heights.
John's son Daniel was among 14 people arrested along with Ahmad "Rock" Ahmad, the brother of slain underworld figure Walid Ahmad, who was taken into custody at his Bankstown home.
Ibrahim brothers Michael and Fadi have had close calls in recent years, with Michael shot in the shoulder as he made his way home in Sydney's CBD in January 2015.
NSW Police used sniffer dogs to search various properties during the raids. He has not been arrested in relation to the operation.
NSW Police say a planned joint operation with the Australian Federal Police is now underway across Sydney, related to separate ongoing investigations.
"Some of these relate to AFP investigations, some of these relate to joint agency investigations".