Loreen, who competes in tonight's second semi-final, met human rights activists on Wednesday. News agency AP writes that a senior official in the Ilham Aliyev's presidential administration, told local media that the European Broadcasting Union should prevent such meetings with "anti-Azerbaijani" groups.
"The European Broadcasting Union must intervene in this issue and stop these politicised actions," Ali Hasanov told Trend news agency.
Police today detained scores of opposition activists who staged a rally outside Baku's public television station, which is broadcasting Eurovision.
The opposition has used the build-up to the contest to focus on allegations that Aliyev's government jails opponents, persecutes journalists and cracks down on protests and suppresses free speech.