The U.S. State Department issued a worldwide travel advisory on Thursday, urging Americans overseas to exercise increased caution.

The travel advisory cited “increased tensions in various locations around the world, the potential for terrorist attacks, demonstrations or violent actions against U.S. citizens and interests.”

The State Department recommended U.S. citizens stay vigilant in locations popular with tourists, and sign up for the Smart Traveler Enrollment Program, which can provide information and make it easier to locate them in an emergency.

The warning comes as thousands have been killed in the Israel-Hamas war. At least 3,785 people had been killed in Gaza as of Thursday according to the Gaza Health Ministry, including more than 1,500 children. Over 1,400 people have been killed in Israel, most of whom were civilians.

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The State Department raised a travel advisory for Lebanon to Level 4 on Tuesday, warning Americans not to travel to the country “due to the unpredictable security situation related to rocket, missile, and artillery exchanges between Israel and Hizballah or other armed militant factions.” There is also an advisory in place warning against going to Gaza, and urging travelers to reconsider visiting Israel and the West Bank.

Many Americans have been evacuating the region, including on a Royal Caribbean International cruise ship that carried U.S. nationals from Haifa to Limassol, Cyprus earlier this week.

Nathan Diller is a consumer travel reporter for USA TODAY based in Nashville. You can reach him at [email protected].