Spanish police website attacked after hacker arrests

Spain's National Police say hackers blocked its website briefly in apparent retaliation for the arrest of three suspected members of the international activist group Anonymous.

Police said Monday the attack happened around 2 a.m.local timeSunday (8 p.m. ET Saturday) but did not disrupt police computer operations and that Anonymous claimed responsibility for it.

On Friday police announced the arrest of three alleged members of the Spanish chapter of Anonymous, which has attacked corporate and government websites around the world.

Police said one of the suspects had a server used to hack into Sony's online Playstation store but the three detainees were not involved in an April cyber intrusion which affected millions of PlayStation Network users.