Washington/IBNS: The US State Department Thursday issued a rare "worldwide caution" advisory for its citizens everywhere, citing terrorism and the potential for anti-American demonstrations.

According to the alert, US citizens should be aware of "increased tensions in various locations around the world."

The warning includes "potential for terrorist attacks, demonstrations or violent actions against US citizens and interests."

This comes amid the war between Hamas in Gaza and US ally Israel, which has sent tensions surging in the Middle East.

The State Department urged Americans to "stay alert in locations frequented by tourists" and to enroll in a program known as STEP, which allows citizens to be located more quickly in case of emergency.