The Russian prison service has reported that Putin critic and opponent Alexei Navalny has died.
"On February 16, 2024, in correctional colony No 3, convict A A Navalny felt unwell after a walk, almost immediately losing consciousness," a statement says.
"The institution's medical workers immediately arrived and an emergency medical team was called.
"All necessary resuscitation measures were carried out, but they did not yield positive results.