The doctor who died at an Iranian detention centre holding opposition supporters was poisoned, the Iranian authorities have said.
But it was still not known if Dr Ramin Pourandarjani committed suicide or was murdered, an Iranian prosecutor said.
The coroner also revealed the person who delivered the food had been interrogated, reports said.
The 26-year-old doctor was found dead on 10 November at the Kahrizak detention centre.
“The coroner said he died after consuming medical pills, the traces of which were found in his salad,” Tehran prosecutor Abbas Jafari Doulatabadi said.
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