The final forensics reports of last week's Abu Zaabal incident where 37 prisoners were killed have shown that the deaths were caused by suffocation from teargas.
The reports said that the victims sustained no burns or bullet wounds on their bodies, Al-Masry Al-Youm reported, adding that the teargas that killed the victims is known as "CS".
Thirty seven supporters of ousted President Mohamed Mursi were killed last week when security forces teargassed them during their attempt to escape detention, the interior ministry had reported.
