To separate. Sometimes juries are sequestered from outside influences during their deliberations.
Source: U.S. Courts
Members of a sequestered jury are usually housed together in a hotel and are not allowed to contact people outside of the court. Sequestration rarely occurs and is meant for jurors' protection. It is used to keep the jurors away from the media during a controversial trial where widespread media coverage could influence a juror's decision. In rare cases, there may be attempts to influence the jurors' deliberations through threats.
Source: California Courts.