An explosion occurred in the vicinity of a Quds Day rally in Tehran on Friday, Iranian state media reported.
The cause of the explosion is currently unknown.
Photos and footage on social media showed that Iranian President Masoud Pezeshkian and Foreign Minister Abbas Araghchi were in attendance.
Additionally, several prominent political figures were said by state media to be marching in Tehran, including Iran's Supreme National Security Council Secretary Ali Larijani, head of the Atomic Energy Organization Mohammad Eslami, Chief Justice Gholam-Hossein Mohseni-Eje'i, and chief of police Ahmad-Reza Radan.
Larijani calls out Trump, blames Israel
Speaking to state media during the march, Larijani spoke out against US President Donald Trump, and blamed the explosion on Israel.
"Trump doesn't understand that the Iranian nation is a mature, strong, and determined one. As American pressure grows, the nation's determination will strengthen. The Zionist regime's attacks towards the march is a sign of its hopelessness."
Radan also spoke, saying that "The people came today to tell the enemy - we are not afraid of you. The people responded to the sound of the explosion with shouts of 'Allahu Akbar.' Before the eyes of the frustrated enemy, the nation will not leave the site, and victory nears."
This is a developing story.