Eurovision 2012 official websites hacked
A group of hackers calling themselves Cyberwarriors for Freedom attacked the official websites of the Eurovision song contest on Thursday, Reuters news agency said.
They are demanding that the host nation, Azerbaijan, cancel next week's competition.
But activist groups advocating a broad spectrum of issues - from human rights to religion - have also sought to seize the occasion to draw attention to their campaigns.
In an Azeri-language message on the affected websites, the little-known hacker group demanded President Ilham Aliyev cancel the event altogether.
"In response to the indifference of the Aliyev regime to calls ... not hold the Eurovision competition, we have carried out a hacking attack on a series of websites," it wrote.