The family of the late US musician Prince is suing his doctor, alleging he failed to properly treat the singer for an opioid addiction.
A lawsuit filed in Minnesota, reported by ABC news, alleges that failures by Dr Michael Schulenberg played a “substantial part” in the star’s death.
Prince died in 2016, aged 57, from an accidental overdose of the painkiller fentanyl, a powerful opioid.
Dr Schulenberg has denied any wrongdoing.
Earlier this year, prosecutors said no criminal charges would be brought over Prince’s death.
But the family’s lawsuit, filed in Hennepin County District Court on Friday, alleges that Dr Schulenberg’s actions had played a part.
“He failed to appropriately evaluate, diagnose, treat and counsel Prince for his recognisable opioid addiction, and further failed to take appropriate and reasonable steps to prevent the foreseeably fatal result of that addiction.”
“These departures from the standard of acceptable medical practice had a substantial part in bringing about Prince’s death.”
The family of the singer – whose real name was Prince Rogers Nelson – is seeking unspecified damages in excess of $50,000 (£39,000).