But Iran's hand was arguably weakened after this episode as Israel's Iron Dome shot hundreds of its missiles out the sky, CNN's Newton said.

While Israel has always accused Iran of smuggling weapons to Hamas through the Egyptian border, Iran today implicitly confirmed it.

"Gaza is under siege, so we cannot help them. The Fajr-5 missiles have not been shipped from Iran. Its technology has been transferred (there) and are being produced quickly," Mohamed Ali Jafari, the head of Iran's Revolutionary Guard, is quoted as saying by the Iranian news agency ISNA.