Peking University (PKU) will close its south, southeast and little southwest gates from July 20 to September 18 to ensure a safe Olympic Games, Beijing Legal Times reported Tuesday.

Radiation monitors at the Daiichi plant briefly picked up radiation in the range of 400 millisieverts per hour, 400 times the legal limit and the highest rate since the crisis began.

Media groups such as the Associated Press and the Los Angeles Times provide legal advice.