Police raided a home in Cranbourne on Thursday morning as part of an investigation into multiple incidents including other kidnappings and extortions.

It includes a kidnapping in early May where a male victim received what police describe as "distinctive burns" to his body.

Investigators initially believed the man had been kidnapped and taken to a park, but now understand he was taken to a house where he was held captive and seriously assaulted for several hours before being released.

Police are looking at whether it may be connected to drug trafficking.

Detectives are keen to speak to anyone who may have further information about the incident or who has witnessed any suspicious activity linked to the Tongola Court, Cranbourne, property searched by police today.

Australian Associated Press