BERLIN, Sept 11 (Reuters) - The Novichok nerve agent used to
poison Kremlin critic Alexei Navalny, who is in intensive care
in a Berlin hospital, was 'harder' than previous forms, Der
Spiegel magazine said the head of Germany's foreign intelligence
service told a secret meeting.
Spiegel, without naming a source, added that a delegation
from the Organisation for the Prohibition of Chemical Weapons
(OPCW) was said to have visited at the weekend the hospital in
Berlin where Navalny is being treated.
(Writing by Paul Carrel; Editing by Catherine Evans)