Saudi Arabia is considering other measures to take against Canada, Foreign Minister Adel Al-Jubeir said on Wednesday, amid a crisis between the two countries over the fate of a women’s rights activist.

Al-Jubeir, speaking at a news conference in Riyadh, said there was no need for mediation in the dispute. “Canada knows what it needs to do,” he said.

The kingdom has suspended diplomatic ties as well as new investments with Canada after a Canadian call for the immediate release of an activist held in Riyadh.