Police have seized the single biggest haul of illegal Class A drugs in the force's history.
Officers from the Isle of Man Constabulary say they've managed to remove two kilos of heroin and one-point-two-five kilos of cocaine from the island's streets.
Once broken down into individual 'street deals', the illegal drugs would have been able to fetch up to £750,000 from potential customers, according to the force's drug and organised crime unit.
The police say they made four arrests in the Douglas area in relation to the illegal drugs haul on Sunday.
Three men have since been interviewed and charged with serious drug related offences and will appear in court tomorrow.
Two of those charged have been described as 'local men' while the third is a man from the Merseyside area.
Another man has been released on police bail pending futher investigations.
No further details have been given by the force as to how the drugs were seized.
A spokesman for the force said: 'The Isle of Man Constabulary are working hard to ensure the Isle of Man remains a safe place to live and work.
'We will be relentless in our pursuit of Organised Crime Groups in the UK, particularly in Merseyside, who seek to import drugs to our Island.
'We will disrupt criminality on The Isle of Man to dismantle any networks at the earliest opportunity.
'This is not a victimless crime, as these criminals will target vulnerable people and exploit them.
'We know that organised crime such as this is intrinsically linked to the violence, exploitation and anti-social behaviour which blights our communities. It is therefore right that we target those individuals and bring them to justice.
'We would encourage anyone with any information about drug and organised crime, as well as another other criminality to come and speak to us.
'Anyone who wishes to remain anonymous can also contact Isle of Man Crimestoppers on 0800 555 111.'