Its announcement came three days after LulzSec released , stolen from the Arizona Department of Public Safety computer network, and four days after U.K. police said they had made .

"Our planned 50 day cruise has expired, and we must now sail into the distance, leaving behind - we hope - inspiration, fear, denial, happiness, approval, disapproval, mockery, embarrassment, thoughtfulness, jealousy, hate, even love," the group said in .

"If anything, we hope we had a microscopic impact on someone, somewhere. Anywhere."

LulzSec spent the last several weeks attacking websites and computer networks of the U.S. Central Intelligence Agency, the U.S. Senate, the U.K.'s Serious Organised Crime Agency, the Brazilian government and the energy giant Petrobras, among others.

Last Tuesday U.K. police said they had arrested a 19-year-old man who they said was a member of the group. LulzSec said he had operated one of its Internet Relay Chat (IRC) servers but that he was not one of its leaders.