Iran to retaliate on Israel's attack in Syria, says Hezbollah deputy secretary-general

Deputy Secretary-General of Hezbollah Naim Qassem said Monday in an interview to Al Mayadeen that, "By attacking the T-4 base Israel wanted to show it's in control of the conflict, that's unacceptable to us."

"The Iranians killed by Israel will be avenged. An Iranian retaliation against Israel is expected, but its nature is still unknown to us," he added.