India, Sept. 20 -- US-Israel-Iran War Latest News: Amid rising tensions across the Middle East, the United States has urged its citizens in nine countries to exercise "heightened vigilance", warning that the regional security environment remains complex and could deteriorate unexpectedly. US diplomatic missions in Iraq, Bahrain, Oman, Saudi Arabia, Iran, Qatar, Lebanon, Kuwait and Jordan cited the risk of further escalation, including amid fighting involving Saudi Arabia and Yemen's Houthis that has affected civilian airports.

US-Israel-Iran War Latest News: US urges citizens to exercise caution across Middle East as Saudi-Houthi fighting could 'escalate rapidly'

The United States has warned its citizens in Iraq, Bahrain, Oman, Saudi Ar...