(The Hague) Dutch police said on Wednesday they had arrested three men accused of drugging gay men at sex parties, raping them and injecting them with a cocktail of HIV infected blood.

"Two of the suspects have admitted to having injected at least five victims with HIV infected blood," police spokesperson Sylvia Sanders told Dutch NOS public radio.

According to the police the gang would contact other gay men on the Internet and invite them to weekly sex parties in the northern city of Groningen.

They would then administer the so-called date-rape drug GHB to the men and then sexually abuse them. In several cases, they even injected them with a cocktail of HIV infected blood.

The police said the suspects committed the crimes for a kick and because they felt "sex without a condom was the most pure".