When Alexey Navalny’s two spokespeople, Kira Yarmysh and Ruslan Shaveddinov, landed at Moscow’s Sheremetyevo airport on Tuesday, customs officials and police officers were waiting for them. The authorities detained the two activists, who anchor the YouTube channel “Navalny Live,” on charges of inciting unsanctioned protests. Yarmysh and Shaveddinov were coming home after successfully broadcasting Sunday’s nationwide “voters’ boycott” protests from an unknown location abroad.

On January 28, Yarmysh and Shaveddinov anchored a 14-hour YouTube livestream of “voters’ boycott” demonstrations in cities throughout Russia. In order to evade police crackdown, the two activists apparently went abroad for the broadcast.

During Sunday’s nationwide protests, Moscow police raided the office of Alexey Navalny’s Anti-Corruption Foundation, sawing through the doors of three locked rooms in a failed effort to find and cut the feed on the “Navalny Live” YouTube broadcast. Officers detained journalist Dmitry Nizovtsev, who was found inside the office, for disobeying police orders. While being detained, Nizovtsev repeatedly asked the officers to identify themselves, but they ignored him. He was later sentenced to 10 days in jail. Alexander Pomazuev, a lawyer for the organization, got the same punishment.

According to the website OVD-Info, police detained 350 demonstrators around the country on Sunday. Most of these people were soon released without charges. Navalny was also released, but he is required to report back for additional questioning.