Former Russian spy Sergei Skripal has  been released  from the hospital a little over two months after he was poisoned with a nerve agent in the U.K.

Skripal and his daughter were found on a park bench in Salisbury, England, in March.

British authorities  blame Russia  for the attack.

Russia's denied any involvement.

Skripal's daughter was released from the hospital in April.

The poison was a nerve agent called novichok that was developed by the Soviet Union.

The director of nursing at the hospital where Skripal was treated said his release was a milestone in his recovery but that there was more work to do outside of the hospital.

Additional reporting from  Newsy affiliate CNN .