THREE people, one with links to the Hells Angels bikie gang, have been charged with drug and firearms offences

THREE people, one with links to the Hells Angels bikie gang, have been charged with drug and firearms offences after South Australian police seized cash, drugs, guns and explosives.

Police raided four properties in and around Bordertown and Keith, south of Adelaide, yesterday.

In one of the houses they found a concealed compartment in a bedroom where four guns, explosive devices, chemicals and cash were hidden.

A 27-year-old Bordertown man was charged with drug and firearm offences and will appear in Mt Gambier Magistrates Court on Wednesday.

A 36-year-old man and a 40-year-old woman, both from Keith, were charged with drug trafficking and firearms offences and were bailed to appear at Mt Gambier Magistrates Court at a later date.

Police said one of the two men was a Hells Angels associate.