( CNN ) -- An FBI agent who was arrested in Pakistan this week after allegedly trying to board a flight with ammunition and knives has been released on bail , police in Pakistan said Thursday . FBI agent Joel Cox was released after paying about $ 10,000 bail in the southern Pakistani city of Karachi , senior police Officer Rao Anwar said . Cox was arrested Monday while trying to board a domestic flight between Karachi and Islamabad . He had 15 9mm bullets , three small knives and a wrench , according to police . The agent was visiting Pakistan as part of an assignment to train local police , a U.S. law enforcement official said . Employees for the FBI and other U.S. agencies are allowed to carry weapons in Pakistan when authorized . Cox is scheduled to appear in court Saturday to face anti-terrorism charges , which restrict unauthorized weapons and ammunition on commercial flights . State Department spokeswoman Jen Psaki said the United States is working with Pakistani authorities to resolve this issue . `` This individual detained is an employee of the FBI who was on a temporary duty assignment to provide routine assistance to the legal attachÃ© at the U.S. mission . But we are coordinating closely to resolve this manner with authorities and we are hopeful in that regard , '' Psaki said Wednesday . U.S. officials hope this incident is more easily resolved than the 2011 case of a CIA contractor who was arrested and charged with killing two men . Raymond Davis said that he believed they were trying to rob him . The case inflamed local anti-American sentiment and soured relations until the United States agreed to compensate the families of the two men . Davis was then freed .
The agent was released after paying about $ 10,000 in bail . When arrested , he had bullets , small knives and a wrench . He also has an extensive criminal record with several arrests for assault on police officers, drug possession, etc.