The authorities did not say why they had barred Cenk Uygur and Hasan Piker, who have popular social media channels, but said their presence “may not be conducive to the public good.”
Aid agencies are racing to help health workers in the Democratic Republic of Congo. The virus is known to have killed at least 43, but the true toll may be far higher.
The events were canceled “to ensure public order and safety,” the authorities said. Jewish leaders had objected to the concert by Ye, formerly known as Kanye West, who has a history of antisemitic remarks.