Three doctors are going on trial in Belgium accused of not respecting the conditions for euthanasia, a first in a country that legalised assisted suicide nearly two decades ago.

The three could be imprisoned for life if found guilty in the case of Tine Nys, a 38-year-old Belgian woman who asserted her right to die in 2010 for severe mental suffering.

Jurors were chosen today for the trial in the city of Ghent.

The court said the charges will be read out on Friday before the defendants answer them on Monday.

The accused are the doctor who gave Ms Nys the lethal drip as well as a general practitioner and a psychiatrist whose green light was needed for the assisted suicide.

The case follows complaints from two of her sisters who deplored what they said was a hasty decision and who accused the suspects of "poisoning" their sister.

They claim that not all treatements were tried for Ms Nys following her diagnosis for autism two months before her death.

The trial will raise the question as to whether her condition was, in fact, incurable.

In another aspect of the case, the doctor who performed the euthanasia is accused of failings during the act.

In particular, he is said to have asked Ms Ny's father to assist him by holding the needle in his daughter's arm.

In Belgium, euthanasia is authorised for patients suffering an incurable disease who have made their request "voluntarily, thoughtfully and repeatedly".

This right, for adults, was extended in 2014 to minors, also within a very strict legal framework.