On Monday, the U.S. Federal Bureau of investigation executed a search warrant at a Hamilton, Ohio, residence -- a raid that The raid comes two days after LulzSec ended a 50-day hacking rampage by posting internal documents belonging to AT&T and data stolen from gaming forums and a NATO website.

Reached by telephone Wednesday, Michael Brooks, a spokesman with the FBI's Cincinnati office, said a raid had occurred Monday at an address on Jackson Road, Hamilton, but he would neither confirm nor deny that the arrest is linked to LulzSec. The warrant in the case is under seal and the name of the person questioned by the FBI has not been released.

Last week, thought to be the operator of the group's IRC (Internet Relay Chat) server, and they have also , Laurelai Bailey, in connection with the group.

On Monday, one of LulzSec's leaders, known as Topiary, deleted his Twitter messages and

Groups calling themselves and have popped up in recent days and started posting information on the group's members -- all of which is being vetted by the FBI, according to a source familiar with the matter.