Heightened security measures come amid growing concern in Jerusalem that Tehran is plotting strikes in retaliation for raids on its regional proxies

As global outrage over Jamal Khashoggi murder fades, top Trump administration officials, Indian PM and Brazilian president set to speak at Riyadh conference

Tehran developing ability to accurately hit anywhere in Mideast, prime minister warns visiting US Treasury Secretary Steven Mnuchin, who vows more economic sanctions on Iranians

Indian PM Modi and Brazil's President Bolsonaro said to be guests of honor; US Treasury Secretary Steven Mnuchin to lead high-powered American delegation including Jared Kushner

Top Trump administration officials expected to use tour of countries in the region and India to increase pressure on Iran

Experts say measure looks like aimed at gathering intelligence and could increase burden for humanitarian trade, amid accounts of Iranians going without vital medicine

US Defense Secretary Mark Esper says Washington 'greatly disappointed' by Turkey's invasion of Syria, insists Kurdish forces remain viable partner for American military

Washington warns 'we can shut down the Turkish economy if we need to,' as UN says over 100,000 displaced since launch of offensive against Kurds

Sigal Mandelker is praised by Mnuchin for helping department play 'an increasingly central role in national security matters'

Measures touted as toughest 'ever' by Trump are derided in Tehran as proof of 'how empty their hands are'