Egypt crisis: Official death toll passes 500
15 August 2013 Last updated at 20:10 BST
In Egypt there has been a sharp rise in the official death toll from Wednesday's clashes between the security forces and supporters of the ousted Islamist president.
At least 525 people are now known to have died, and more than 3,000 have been injured.
On Thursday there was more violence as some demonstrators vowed to continue their fight.
James Reynolds reports from Cairo.