Shanghai Disney Resort visitors need to take a nucleic acid test for the coronavirus upon exiting, and another test after 24 hours, the company said Sunday, adding later in the evening that Shanghai Disneyland and Disneytown would be closed Monday and Tuesday.

Shanghai city said those who visited the Disney venues since Saturday would also need to be tested. As of 8 a.m. on Monday, 33,863 people and 920 physical objects and environment samples from the site had tested negative, the municipal government said, with no new positive cases reported for Sunday in the city.

Shanghai Disney Resort is offering refunds or exchanges for tickets dated Oct. 31, Nov. 1 and Nov. 2.