Spanish police have discovered a further 250 kilos of cannabis on board an Irish yacht.

It brings the value of the haul to over €4 million.

7 people are now being detained in connection with the haul.

That includes an Irish couple from Cork who were arrested in Marbella last Thursday.

The 53-year-old man from Grange in Cork city and his 51-year-old partner from Carrigaline are both being questioned about the drugs haul.

The arrests follow a lengthy operation involving Spanish Police, Irish Customs officers and the Garda National Drugs Unit.

Under Spanish law suspects can be detained for several months while a magistrate investigates if they have a case to answer.