Twin River Casino and Tiverton Casino in Rhode Island will be allowed to open on an invitation-only basis starting in June, officials announced. Twin River Worldwide Holdings, which operates the casinos in Lincoln and Tiverton, announced Friday that the invitation-only opening will begin at 10 a.m. on June 8. Invited players will be allowed to bring one guest, the company explained in the announcement. "While we can’t wait to welcome back all of our guests, please adhere to this invitation-only plus one guest policy and know that a series of those invitations will be extended over the weeks and months to come. During this initial opening phase, we expect occupancy will not exceed 25 percent of fire code capacity," Executive Vice President Marc Crisafulli said in a statement provided by the company. Invitations will direct guests to specific entrances where security staff will check for temperatures. Casino officials said any visitor or staff member with a fever above 100.4 degrees will not be allowed to enter. Masks will be mandatory for all guests and employees, officials said.Inside, the casinos will offer only slot machine play, stadium gaming and virtual table games, officials said. Seating capacity will be limited. Twin River Casino's gaming floor will be divided into three separate rooms and invited guests will be given a color-coded wristband that identifies their assigned space. Similarly, the food court seating capacity will be limited and bar service will use only disposable cups. In his statement, Crisafulli said the plans meet or exceed guidelines established by the CDC and state of Rhode Island. "While admittedly these first steps will be small and slow, we hope to be with you every step along the way," he said. In Massachusetts, casino gambling is currently included in the third phase of the state's reopening plan.