In Tanzania, senior opposition leaders have been freed on bail after their arrest alongside more than 500 young activists who were barred on Monday from staging a rally marking International Youth Day. Among those detained in the crackdown was Freeman Mbowe, a presidential candidate and leader of the Tanzanian opposition party Chadema. Earlier this year, Tanzania’s President Samia Hassan lifted a ban on opposition gatherings that had been in place since 2016, but on Monday authorities said they would not allow protests to continue, citing weeks of youth-led anti-government demonstrations in neighboring Kenya.