The wife of late Russian dissident Alexei Navalny has rejected the findings of the investigation into his death that said he died of a combination of diseases.
Yulia Navalnaya says she will demand a criminal investigation into her husband's death, and that her team will continue to conduct its own enquiries.
Navalny died suddenly in February whilst being held in a maximum security prison in the rural settlement of Kharp, 2,046 kilometres (1,271 miles) east of Moscow.
A medical death certificate shown to Navalny's mother claimed that the causes of her son's death were "natural".
Russia’s Investigative Committee issued an official conclusion regarding his death, saying it was the result of a "combined disease" and occurred as a result of "arrhythmia" — an irregular heartbeat.
"I know that's not true," said Mrs Navalnaya. "I know that ruling is a lie and they are covering up what really happened on that day."
The ruling means the Investigative Committee has formally refused to initiative a criminal investigation into the politician's death.
