Nearly 60 people have been charged in South Australia as part of a joint organised crime sting linked to an encrypted app.

Police swarmed on multiple properties during 23 early-morning raids across Adelaide and regional SA today, arresting dozens of people with alleged links to bikie gangs and at least one alleged member.

Officers made 55 arrests, including six people already in custody, as part of an "unprecedented" phase of Operation Ironside.

LIVE UPDATES: Hurricane Melissa makes landfall in Jamaica

The 55 alleged offenders are facing a combined 813 charges, including allegations of money laundering, drug trafficking and drug manufacturing offences.

Police also seized more than $25.8 million in assets.

Among the seized assets are 24 properties, 70 cars, $142,000 in ca

See Full Page