One of the accused, Maria Alyokhina , collapsed on Wednesday
after suffering a steep drop in blood sugar levels.
British Prime Minister David Cameron was expected to bring up the
matter when he met with Putin, who was travelling to London for
Initial hearings in the trial earlier this month saw the court
order the three members of the rock group stay in detention until
January 2013, a move their supporters condemned as a travesty of
In February, the three women climbed into an area reserved for
priests in the Church of Christ the Saviour, the country's top
Orthodox cathedral, and performed a "punk prayer" against Putin.
The trio -- Nadezhda Tolokonnikova, Yekaterina Samutsevich and
Maria Alyokhina -- were all arrested in March. Several others
also took part but were never arrested.