A British reporter and photographer were arrested while trying sneak into Athens' main Olympic complex to test security, police said today.
The pair from The Times newspaper of London were held for several hours and released without charge.
Police said they been spotted and cautioned on a first attempt and arrested during their second effort to enter the grounds of the stadium complex at night.
In a separate incident, three members of a German television were also briefly detained while trying to enter a seaside Olympic venue without permission.
The incidents occurred as Greece is further ramping up security for the August 13-29 Games, with a budget of more than 1 billion and a massive policing operation set to involve 70,000 personnel.
The United States, Britain and five other countries are advising Greece on how to deal with the threat of a potential terrorist attack.
