Police in Uganda said they were ramping up security measures ahead of the first anniversary of the World Cup bombings in Kampala. Washington in February warned U.S. citizens in Uganda to exercise caution ahead of the country's presidential and parliamentary elections. The country has been on high alert since militant group al-Shabaab claimed responsibility for two attacks July 11, 2010, in Kampala that killed more than 70 people during public viewing parties for the World Cup final. Police in Uganda said they had intelligence to suggest that attacks were being planned to coincide with the anniversary of the World Cup bombings, Ugandan news agency New Vision reports. Authorities said they would conduct spot checks to make sure security measures were in place in the run up to the anniversary. Kenyan authorities this week called on the United Nations to enforce a no-fly zone over Somalia in an effort to contain al-Shabaab. U.S. authorities this week accused Ahmed Abdulkadir Warsame in a nine-count indictment of providing material support to the terror groups al-Shabaab and al-Qaida in the Arabian Peninsula from 2007 into this year.