Embassy says it received unconfirmed threat information . It does not offer details . `` Out of an abundance of caution , the Embassy advises all U.S. Citizens in Guyana traveling on Caribbean Airlines ( CAL ) to the United States from Monday , February 10 , through Wednesday , February 12 , 2014 , to make alternate travel arrangements , '' the embassy said in a statement . The embassy says it has added additional security measures .
Embassy says it received unconfirmed threat information . It does not offer details . The embassy says it has added additional security measures .