India, Jan. 11 -- Israel has shifted into a heightened state of alert after US President Donald Trump posted a strong message about Iran. The comments came as Iran faces widespread anti-government protests that have ballooned into one of the largest movements in years. The situation has raised fears of deeper US involvement.

"Iran is looking at FREEDOM, perhaps like never before. The USA stands ready to help!!!" His terse message has been interpreted by some officials and analysts as a sign that the US may be considering actions beyond diplomatic support.

Israel has stepped up security monitoring across its defence and intelligence networks. Officials fear that any direct US move against Iran could trigger retaliation across the region....