Fukushima radiation traces spread across Asia
Governments in Asia are urging their citizens to stay calm after small traces of radioactivity from Japan's crippled nuclear plant were detected across the region.
Food and travellers from Japan are already being screened for radiation.
In China, two Japanese visitors were hospitalised after airport officials detected elevated radiation levels on them, but they were later discharged.
Chinese authorities also turned away a Japanese ship after detecting abnormal levels of radiation.
The ship had earlier passed within 100 kilometres of the crippled Fukushima nuclear plant.
In Taiwan, radioactive particles have been found on 43 passengers from Japan since the crisis began.
The governments of South Korea, the Philippines, Vietnam and China have all reported that small traces of radiation from the crippled Fukushima plant have drifted over their territories.
Traces have even drifted all the way to the United States, with rainwater in Ohio found to have been contaminated.
But each government says the levels are so miniscule the radiation presents no risk to human health.
The Australian Radiation Protection and Nuclear Safety Agency (ARPANSA) says there is no need to test passengers from Japan for radiation.
The agency says the risk of contamination is negligible.