According to the Supreme Leader's official website, Khamenei.ir, "the Leader of the Islamic Revolution, Imam Khamenei attended the second night of mourning ceremonies, for the Master of Martyrs, Imam Hussain (pbuh) and his companions, on Sunday, August 16 in the Hussainiyyah of Imam Khomeini.
Due to the Coronavirus pandemic, this year's mourning ceremonies are not being held publicly."