An official says three people being evacuated from an area near a quake-damaged Japanese nuclear plant have been exposed to radiation.
The Fukushima prefectural disaster official confirmed their exposure but said they showed no signs of illness.
A blast Saturday at the nuclear plant blew off the walls and roof.
Yoshinori Baba says the three were in a group of evacuees who had waited in a school yard to be picked up by a helicopter.
Officials say the plant has released some radiation because of a cooling problem since Friday's massive quake. They say residents are being evacuated from a 12-mile (20-kilometer) radius as a precaution.