Dhaka, April 14 -- Iran launched a swarm of explosive drones and fired missiles at Israel late on Saturday in its first ever direct attack on Israeli territory, risking a major escalation as the United States pledged "ironclad" backing for Israel.

Sirens wailed and Reuters journalists in Israel said they heard distant heavy thuds and bangs from what local media called aerial interceptions of explosive drones. Authorities said a 7-year-old girl was critically injured.

Israel's military spokesperson Rear Admiral Daniel Hagari said Iran launched dozens of ground-to-ground missiles at Israel, most of which were intercepted outside Israeli borders. They included more than 10 cruise missiles, he said.

The Iranian salvo amounted to more than ...