Several distressing videos have emerged over the weekend showing how deadly the protests in Iran have become.

One set of videos were filmed at a mortuary near the town of Kahrizak, the Forensic Diagnostic and Laboratory Center of Tehran Province, which is around 14 miles from Tehran.

We matched the layout of the exterior of the building and the dimensions and structure of a warehouse and another building nearby to satellite images to verify the location.

Shots from outside these buildings show many body bags on trolleys, with hundreds of people gathered around them.

One video shows the warehouse appearing full of both bags and people looking over them. We have assessed at least 50 body bags were seen in the clip.

One video from Sunday was published by the state broadcaster. It shows a reporter arriving at the site and inspecting body bags inside a windowless room inside the same warehouse while talking to grieving people.

Two of the videos BBC Verify found did not appear online before 10 January, although they could be filmed earlier.