The director of the FBI Robert Mueller on a three-day visit to Beijing said he was impressed with the preparations by the police and China’s security organizations.

Mueller told reporters that he “was impressed by the thoroughness of the preparations and the professionalism that is being put in to provide security for the games.”

“Both countries face threats from terrorism, face threats from cyber-crime, hackers and the like and so my discussions with my counterparts here have discussed those areas where we have mutual concerns,” Mueller said.

Read more: FBI chief ‘impressed’ with Beijing Olympics security