Police say they have arrested 30 suspects who allegedly smuggled drugs into Spain through the southern coast using boats and jet skis.

The Interior Ministry said Thursday that the gang used fishing and recreational boats to carry drugs from Morocco to rendezvous points in the Mediterranean Sea. Once there, hashish was transferred to couriers on jet skis.

The ministry said the organization, led by an Italian resident in Spain, laundered its profits using a catering business in the Sierra Nevada region.

Police say they seized 488 kilograms (1,075 pounds.) of hashish, 11 vehicles, three ships and two firearms worth an estimated 3.3 million euros ($4.3 million).