Authorities in Iraq have unearthed the remains of 470 people believed to have been executed by the Islamic State of Iraq and the Levant group (ISIL) last year, the country's health minister has said.
The bodies are believed to be those of young cadets who were abducted from an army base just outside Tikrit and executed last year.
The highest estimate for the number of victims killed by ISIL is around 1,700 people.
