Spanish police on Sunday reported that they broke up a network that financed the so-called Zemun clan of Serbian mafia via the profits from marijuana plantations on Gran Canaria island.

Police arrested 25 people and seized about 700 pot plants in greenhouses and open-air plots.

The investigation leading to the take-down of the criminal group was launched after the arrests last February of Luka Bojovic, a Serbian mafia capo and the mastermind behind the 2003 murder of Serbia's then-prime minister, Valadimir Milisavljevic, and two other hitmen.

Seventeen of the arrests were made in Las Palmas, in the Canary Islands, eight in the cities of Benidorm and Villajoyosa, in southeastern Spain, according to police, who said that officers carried out 33 raids in which they seized 840,000 euros (about $1.1 million) in cash, 65 grams of cocaine, luxury watches and jewelry in two bank safe deposit boxes.

The investigators located three pot plantations, the largest of them having almost 500 plants in a multi-story house located in Las Palmas. EFE