ZURICH (AP) — The hockey world championships were pulled from Belarus on Monday following pressure from opposition groups and a threatened boycott by sponsors.

The International Ice Hockey Federation cited safety concerns and said it will seek a new country to co-host the tournament with Latvia or host it on its own. The tournament is scheduled to start May 21.

Criticism of Belarus’ role as co-host grew after authoritarian president Alexander Lukashenko’s disputed re-election last year was followed by mass arrests at largely peaceful demonstrations.

The IIHF said its council “determined that it is currently impossible to ensure the welfare of teams, spectators and officials” in Belarus.

IIHF president Rene Fasel had tried to keep the men’s tournament in Belarus, claiming it could build bridges between the opposition and Lukashenko. Opposition groups criticized Fasel after he and Lukashenko embraced when they met for talks last week.