It said the presence of those athletes combined with the FIE verification process of any support for the war that was based on "unspecified premises" were the reason for the decision.

Source: https://www.channelnewsasia.com/sport/fencing-poland-scraps-womens-foil-world-cup-over-russian-athletes-federation-3398936?cid=cna_flip_070214

Yet fencers from Russia and Belarus were cleared to return to International Fencing Federation (FIE) events after a vote was held at its Extraordinary Congress on March 10.

Source: https://www.channelnewsasia.com/sport/fencing-denmark-cancels-event-over-russian-belarusian-participation-3385886?cid=cna_flip_070214