Japan is finalizing new supervisory measures that will allow foreign nationals applying for refugee status and expected to be in detention for more than six months to be released and have a social life, according to immigration officials.

The plan by the Immigration Services Agency comes in response to criticism of the country's long-term detention of foreign nationals who refuse to accept deportation.

The agency, which has been studying a set of proposals compiled in June by a panel of immigration experts, is expected to submit necessary revisions to the immigration law to the Diet as early as possible, the officials said Tuesday.