( CNN ) -- The U.S. government issued its latest version of a worldwide safety caution Wednesday to U.S. citizens abroad . Terrorist groups `` continue to plan terrorist attacks against U.S. interests in multiple regions , including Europe , Asia , Africa , and the Middle East , '' a statement by the Department of State 's Bureau of Consular Affairs said . Travelers should be cautious when using public transportation systems , including maritime services like ferries , the statement said . The Middle East and Africa are the most unpredictable areas , with terrorist groups and pirates attacking recently in Yemen , Algeria , Kenya and Somalia , the statement said . It listed a number of places that might be targeted , including `` high-profile sporting events , residential areas , business offices , hotels , clubs , restaurants , places of worship , schools , public areas , and other tourist destinations . '' Vet foreign student pilots better , GAO says . Maritime authorities recommend Western seafarers stay at least 200 nautical miles off Somalia and avoid the port of Mogadishu , the statement said . The Department of State `` encourages U.S. citizens living overseas or planning to travel abroad to enroll in the Smart Traveler Enrollment Program , '' the statement said . Officials use the program to contact enrollees in the event of an emergency . Thursday 's announcement replaces one issued in January .
the Smart Traveler Enrollment Program urges Somalia citizens across the world to be cautious . Yemen , Algeria , Yemen and Yemen are considered particularly dangerous . Large events or areas where tourists gather could be targeted for extremist attacks . U.S. citizens abroad are encouraged to enroll in The State Department .