( CNN ) -- The U.S. State Department has issued a warning to American citizens traveling or residing in Uganda to maintain a high level of vigilance as a major African Union summit gets underway Monday . The security warning comes a week after a trio of bombings killed 74 people in Uganda 's capital , Kampala , during the World Cup final . Many of those killed and injured had gathered to watch the match . A Somali Islamist militant movement claimed responsibility for the July 11 bombings at two venues . `` All U.S. citizens should consider the possibility of similar terrorist attacks occurring in conjunction with the African Union Summit , '' officials said in a statement released Friday . The summit , which will focus heavily on maternal and child health , began Sunday and continues through July 27 , according to the African Union website . Officials are encouraging Americans to take appropriate steps to increase their security awareness in large public gatherings , which they say can be vulnerable targets for extremist or terrorist groups . The travel alert expires August 15 .
The U.S. State Department issues a travel warning for Uganda . The alert comes a week after bombings killed 74 in Kampala during the World Cup final . Americans should `` maintain a high level of vigilance , '' officials say . The travel alert expires August 15 .