Washington ( CNN ) -- The State Department has issued a travel alert warning U.S. citizens in South Africa to be aware of increased terrorism risks during the World Cup , which starts June 11 . `` Large scale public events like the World Cup may present a wide range of attractive targets for terrorists , '' the alert said . `` There is a heightened risk that extremist groups will conduct terrorist acts within South Africa in the near future . '' However , the State Department said , there was no specific information on any threat . Any credible threats will be conveyed to the public , the alert said , urging all U.S. citizens to register with the embassy in South Africa to enable them to get updated security information . The alert issued Thursday urged Americans to be aware of their surroundings and warned that crime is prevalent in the country . It urged visitors not to wear expensive jewelry and ensure valuables were not in plain view . `` While driving , keep doors locked and windows closed ... and when stopping at intersections at night or in isolated locations , leave enough space in front of your vehicle for a quick exit . '' The alert comes as Vice President Joe Biden gears up for a trip to Egypt , Kenya and South Africa during the week of June 7 . Biden will represent the United States in the opening ceremonies of the World Cup . This World Cup ends on July 11 .
U.S. issues travel alert for South Africa . Alert says World Cup an attractive target for terrorists . The United States has issued a similar warning in the past about potential terrorist threats to its citizens traveling there.