The U.S. State Department on Monday strengthened its travel advisory for Japan just two months before the opening ceremony of the Tokyo Games, warning Americans not to travel to the country due to its “very high level” of COVID-19.

While the U.S. Olympic and Paralympic Committee (USOPC) said American athletes would still be able to compete safely at the Tokyo Games, the announcement was yet another stumbling block as Japan continues to prepare for the games despite growing public opposition.

“We feel confident that the current mitigation practices in place for athletes and staff by both the USOPC and the Tokyo Organizing Committee, coupled with the testing before travel, on arrival in Japan, and during Games time, will allow for safe participation of TEAM USA athletes this summer,” the USOPC said in a statement.