Iran's Revolutionary Guard Corps said Wednesday that hypersonic missiles were used during the latest attack on Israel, as fighting between the two countries entered a sixth day.

Iran told residents of Tel Aviv to prepare for an attack, with the Islamic Revolutionary Guard Corps claiming its hypersonic Fattah-1 missiles were "repeatedly shaking the shelters" in the commercial hub.

"The 11th wave of the proud Operation Honest Promise 3 using Fattah-1 missiles" was carried out, the Guards said in a statement broadcast on state television.

Hypersonic missiles travel at more than five times the speed of sound and can manoeuvre mid-flight, making them harder to track and intercept.

Israeli warplanes targeted the Iranian capital before dawn Wednesday after the military issued a warning for civilians to leave one district for their safety.

The Israeli military later said it struck weapons manufacturing sites and a facility used to make centrifuges in Tehran.

(With input from AFP)