London: Yulia S. Skripal has been released from a hospital in southern England, officials said on Tuesday, five weeks after she and her father, a former Russian spy, were poisoned with a nerve agent that left them fighting for their lives and that raised tensions between Russia and the West.

The poisoning of Skripal and her father, Sergei V. Skripal, has had ramifications far beyond the cathedral city of Salisbury, England, where it took place, prompting a confrontation between Russia and the west that escalated.

Britain has blamed Moscow for the poisonings, which the Kremlin has strenuously denied, and the dispute precipitated a series of expulsions of diplomats between the two countries and beyond, as Britain's allies rallied to its side.

Britain says the poisoning on March 4 involved a rare class of the military-grade nerve agent Novichok, which is widely believed to have been developed in Soviet laboratories, leaving the Skripals fighting for their lives.

Skripal came out of critical condition almost two weeks ago, and her father's condition was raised to stable from critical on Friday.

"Yulia has asked for privacy from the media and I want to reiterate that request," Dr Christine Blanshard, medical director of Salisbury District Hospital, told reporters on Tuesday.

"This is not the end of her treatment, but marks a significant milestone."

Though Skripal, 66, "is recovering more slowly than Yulia", Dr Blanshard said, "we hope that he, too, will be able to leave hospital in due course." Reuters