Sofya Lanshakova died of suspected peritonitis after suffering excruciating pain in her tummy during a holiday in Turkey.
Since then, her heartbroken mother Tatiana has alleged “organs”, including the womb, were removed illegally and sold on the black market.
But new footage shows Tatiana was detained by police as she sought to confront medics at Yaşam Hastanesi, a hospital in Ankara, Turkey, this week.
She was reportedly held for 12 hours.
The mother, from Russia, was told by a hospital representative: “We did not take any organs.
“It was (done by) police at the autopsy.”
Journalists accompanying Tatiana were told to stop filming, it is said, and the police were called.
“I could never think that I would stand at my daughter’s grave,” Tatiana said after her ordeal.
“She had so many plans.
“This wound will never heal.
“Exhumation – we are ready to go to the end, however painful.
“We we need the truth.”
Speaking about the teenager’s case, Alexey Erkhov, the Russian ambassador to Turkey, said: “We deeply sympathise with the grief of the mother who lost her daughter.
“Russian diplomats will continue to assist in resolving this issue.”
A representative of Siedra clinic – where the girl was initially taken – strongly denied any wrongdoing and blamed the mother.
“I believe that the mother is to blame – she did not sound alarm on the first or second day (when the girl felt abdominal pains),” said Asya Batcheva.
“What proof do they have that something was done wrong? Or some organs taken?
“Yes, the girl was dissected here (in Turkey), checked and (her body) sent home.
“If something was missing, any crimes committed against that girl, I think that the criminal case would be initiated.”