Israel and Iran have begun a new round of attacks, as the conflict between the two heavily armed rivals enters its fourth day.

Iranian news media and residents of Tehran say the damage from the latest Israeli strikes appears to be significant, with several apartment buildings badly damaged. Residents say they are hearing ambulance sirens and fire trucks racing to the scenes and rescue workers are working to find casualties in the rubble.

The Israeli military claims its campaign has eliminated high-value targets, including nine senior scientists, and severely damaged Iran’s nuclear infrastructure. Iranian authorities confirmed damage to four critical buildings at the Isfahan uranium conversion facility,