The World Health Organization says those exposed to the worst levels of radiation during the Japanese nuclear disaster have a higher risk for developing certain types of cancer.
In a report Thursday, the U.N. agency said the most affected were those near the Fukushima Dai-ichi nuclear power plant. Around 110,000 people in the area were evacuated in March 2011 after a massive earthquake and tsunami caused a meltdown in the plant's nuclear reactors and sent radiation spewing into the surrounding area.
The WHO report says there is little to no risk of increased cancer rates among those outside the Fukushima area.
But the agency estimates there is up to a 70 percent increased risk of thyroid cancer among females exposed as infants in the most contaminated area. The risk of leukemia increased by 7 percent for males exposed as infants.