Marie Trintignant had been filming in Lithuania
An autopsy on French actress Marie
Trintignant has showed she died from repeated blows to the head, a judicial official has said.
Ms Trintignant, 41, daughter of French film veteran Jean-Louis Trintignant, died on Friday after five days in a coma.
An official at the Paris prosecutor's office said: "She succumbed to a trauma from multiple blows to the face,
which caused cranial trauma, and blows to various other areas,
which confirms what doctors first concluded."
Her boyfriend Bertrand Cantat, lead singer with rock band Noir Desir, is being detained by police in Lithuania on suspicion of beating her following a row.
He had been
staying with the actress in a hotel in Vilnius where she was
making a film.
Bertrand Cantat is being held for questioning
French investigators are expected in the Lithuanian capital next week to try to
reconstruct a domestic drama that has shocked France.
But they will not have access to 39-year-old Mr Cantat, who is
in the prison hospital due to his fragile psychological state.
He is now implicated in an inquiry opened by the French
prosecutor into "voluntary violence that unintentionally caused
This is equivalent to him being formally investigated and means he can only be questioned by the French judge assigned.
The French justice ministry said it was optimistic that Mr
Cantat could be extradited to France for a trial.
Lithuanian lawyer, Virginijus Papirtis, said: "He has told me 10 times this was an unhappy accident."