Iran's attack appears to be over after air raid sirens earlier sounded across Israel and civilians were told to shelter.

Iran launched nearly 200 missiles at Israel late last night, an attack branded a "significant escalation" by the US. Israel has vowed retaliation, which could reportedly come in days. Meanwhile, its forces have struck Lebanon again overnight.

An airstrike has leveled an apartment building and killed three Palestinian militants in central Beirut, as Israel appeared to send a clear message that no part of Lebanon is out of bounds.