An Olympic water polo test event scheduled for this weekend in Tokyo has been canceled because of coronavirus-related travel restrictions affecting sports officials, organizers revealed Tuesday.

The two-day event at Tokyo Tatsumi International Swimming Center was scheduled to open on Saturday and serve as a dress rehearsal to confirm and improve the competition and Games operation. The event could be rescheduled for a later date.

According to organizers, timekeepers and record keepers were among the technical officials who were unable to come to Japan because of strict travel regulations barring most foreign entry into the country.