A teenage girl died shortly after she was released from a grim detention centre in Iran, with officials saying she died of an “overdose”.

Yalda Aghafazli was seized by security police at an anti-regime demonstration in Enghelab Square in central Tehran on 26th October.

She was taken into custody and released on 6th November, apparently without ever being informed what she was accused of.

During her 10 days in Qarchak Prison – where health and sanitation conditions are said to be poor – the 19-year-old had reportedly gone on hunger strike.

According to reports, she attempted suicide on 10th November as a result of her ordeal, and died in the private Tehran Clinic Hospital two days later.

She was buried in Behesht-e Zahra Cemetery later that day under the watchful eye of security agents.

Police in the Islamic Republic stated that the teenager had died of an “overdose”.

But officials in Iran have been accused of inventing causes of death for protesters either killed or driven to taking their own lives by security agents.

Yalda had several facial piercings – which are generally frowned upon by authorities in Iran – and had shared videos of herself without a hijab on.

The ongoing protests in Iran erupted on 16th September following the death of 22-year-old Mahsa Amini, who was allegedly beaten into a coma by morality police.

They have so far claimed at least 326 lives, including 43 children, and injured at least 1,160, according to independent estimates.