Hackers have attacked the United Nations official website, forcing some sections to be taken offline.
Slogans accusing the US and Israel of killing children appeared on the pages reserved for statements from UN Secretary General Ban Ki-Moon.
Other pages on the site were also breached by the group, who described their actions as a "cyberprotest".
In other attacks by hackers using the same names, they have claimed to be from Turkey.
The message on the UN site said: "Hey Ysrail and Usa dont kill children and other people Peace for ever No war."
The hackers named themselves as "kerem125", "Gsy" and "M0sted".
Groups using the same names have attacked many websites.
In one message left on a travel agency site, they described themselves as "Turkish defacers".
The UN was forced to take down the affected pages for repair, but later managed to restore the secretary general's statements.