The banners also expressed support for Vahid Beheshti, an activist who recently spoke to Israel's Knesset.
Hussein said there weren't any Mossad agents and explained that four people were killed and six were injured by the Iranian strike and were Iraqi Kurds.
Iran's Revolutionary Guard attacked targets in Pakistan just one day after shelling Iraq and Syria with missiles.
Several civilians are believed to have died in the attack, with Kurdish regional government officials announcing the death of a prominent businessman and four of his family members.
Three security sources and Iranian state media said an Israeli air strike outside Damascus on Monday killed Sayyed Razi Mousavi.
Defense Minister Yoav Gallant said Israeli fighter jets are flying openly over Lebanon as Hezbollah is being hit "very hard" by the IDF.
Iranian state-owned media confirmed the death of IRGC commander Seyed Razi Mousavi, identified as "a senior advisor" in Syria.
The comments by deputy White House national security adviser Jon Finer are among the most explicit to date by a US official alleging Iranian involvement in the Houthi attacks.
Amnesty International documented 45 cases of rape and sexual assault endured by anti-regime protesters in Iran.
The European Union's top diplomat Josep Borrell said on Tuesday that Johan Floderus' imprisonment had been raised repeatedly with authorities in the Islamic Republic.
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