The International Olympic Committee says it has complete confidence over safety at next year's London Olympics.
The capital was calm on Tuesday after four nights of rioting.
The IOC says security is a top priority, but that it is not its direct responsibility.
British Olympic Association director of communications Darryl Seibel says he's confident that the Games will pass off safely.
Test events in beach volleyball, badminton and cycling will go ahead this week in London.
The rioting began as two senior members of the IOC co-ordination commission arrived for a project overview.
A further 200 representatives of National Olympic Committees will be in London, attending seminars, about Games arrangements.