The three people – a woman aged 48 and two men aged 37 and 53 – are all resident in Jersey and were being questioned by police today after the arrests were made in town as part of a wider police operation, which also involved the Jersey Customs and Immigration Service.
Around 10 oz of the class A drug were brought into the Island in a parcel through a freight firm at the port.
It was then delivered to the address where the arrests were made.
The States police have not named the freight company and stress they were not knowingly involved in the importation.
This morning Det insp Gary Pashley, who is in charge of the case, said: ‘We will be continuing our questioning of the three people and charges could be brought later today or early tomorrow.
Our investigations are ongoing in this matter.’