The Japanese government will prohibit people from entering an area within a 20-kilometer radius of the crippled Fukushima No.1 nuclear power plant, the government said Thursday. Prime Minister Naoto Kan announced the "no-entry" policy will be effective from midnight Thursday while visiting the Fukushima Prefecture in the morning. The restricted zone is already covered by an evacuation directive from the central government, but local residents have become concerned about their homes being burgled and the area has seen increasing numbers of residents going back to their homes to collect items of financial and sentimental value, as the previous directive was on a voluntary basis. Under the government's new mandate, residents will be allowed a supervised visit to collect items of value and other necessities and following this will have access to their homes cut off. Chief Cabinet Secretary Yukio Edano said at a televised press conference that only one person per family will be allowed to return for up to around two hours. They will be made to wear protective clothing and carry dosimeters. The government plans to start the brief return "in a few days" to complete the first stage in one to two months, Edano added. But the government has decided not to allow residents living within a 3-km radius of the plant to do so, and will likely exclude also areas outside the 3km radius that have registered high levels of radiation exposure.