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

Israel expanded its attacks on Iran on Monday, striking the headquarters of state television after ordering residents to leave part of Tehran, as the fiercest and deadliest confrontation in the history of the Israeli-Iranian conflict entered its fourth day.

The Israeli military said an entire Tehran neighborhood should evacuate ahead of planned strikes there, as residents of Iran’s capital piled onto roads heading north to seek shelter from the fourth day of bombardment.