Russian President Vladimir Putin has been in a coma since January. He was released from a Russian hospital on February 1.
He is now being treated in a US hospital. The Russian government says he is in a critical condition. The hospital says it is investigating the cause of the coma. It says the hospital has been given permission to treat the patient. It is not clear if the patient is alive or dead, but the hospital says the patient has been released from the hospital and is being cared for in the US.