The strikes hit Tel Aviv, damaging a building and vehicles and resulting in injuries, Israeli officials said. Israel’s defense minister said Iran had “crossed a red line” by firing on civilian areas.

Residents of Tehran, the Iranian capital, reported hearing huge explosions and Iranian state television broadcast images of smoke and fire billowing from buildings.

Israel’s military struck Tehran and other targets early Friday morning, raising fears of a broader war. The U.S. said it was not involved in the strikes.