A Japanese construction firm trying to restore facilities at the crippled Fukushima nuclear plant has admitted asking workers to under-report exposure to radiation.
The Fukushima plant was devastated by the March 2011 earthquake and tsunami.
A construction firm for the plant, BuildUp, has admitted one of its executives told workers to cover their radiation detection devices with lead casings, the BBC reoprts.
Staff of the company worked at Fukushima between November and March this year, trying to restore facilities.
In December, a Build-Up executive told them to cover their dosimeters with lead casings when working in areas with high radiation.
Employees were told that if they didn't fake the exposure levels, they would rapidly exceed the legal limit for exposure and have to stop working.
About nine workers did so. Others refused and left the company.
The Japanese government says it will investigate the report.