London: Yulia Skripal, one of two Russians poisoned by a military-grade nerve agent, has been released from hospital, British media is reporting.

BBC News said on Tuesday that Skripal, 33, had been discharged from hospital on Monday and taken to a "secure" location.

Britain's Press Association said hospital officials would make an official statement shortly.

The British government is likely to keep details about her location secret given the sensitivity of the case.

If she is well enough, she is likely to be extensively questioned by British security officials and police about her recollection of events leading up to her poisoning, which sparked a major confrontation between Britain and Russia that recalls Cold War tensions.