The founder of the Swiss right-to-die organisation Dignitas has died by assisted suicide, the group says.
Ludwig Minelli, 92, died on Saturday, days before his 93rd birthday.
The group paid tribute to Minelli, saying he had led a "life for freedom of choice, self-determination, and human rights".
Minelli founded Dignitas in 1998, and since then it has helped thousands of people to die.
In recent decades, some countries have shifted their stance on assisted dying, with Australia, Canada and New Zealand introducing laws. The UK House of Lords is currently debating the assisted dying bill.
Critics of the legalisation say it could see disabled and vulnerable people being coerced into ending their lives.