Two brothers of Kings Cross identity John Ibrahim, Michael Ibrahim and Fadi Ibrahim, have been arrested in Dubai as police smash an alleged long-running organised crime syndicate.
The pair are among 14 people arrested, including underworld figures Mustapha Dib, who was also arrested in Dubai, and Rock Ahmad, who was taken into custody at his Bankstown home.
The arrests relate to long-running syndicates that have been allegedly smuggling drugs and tobacco into Sydney for decades.
More than 25 homes are also being raided including the homes of John Ibrahim and his son Daniel Ibrahim.
Australian Federal Police and NSW Police carried out the dawn raids at properties across Sydney.
The operation began on Tuesday at several addresses in Punchbowl, Bankstown, Arncliffe and Dover Heights. Telopea Street in Punchbowl has been closed.
The raids are not terror-related, police say, but are part of ongoing but separate investigations into organised crime.
A NSW police spokesperson said a number of search warrants had been issued.
The raids are being conducted by the Middle Eastern Crime Squad, NSW Joint Organised Crime Group, Australian Federal Police and NSW Police.