1 of 6
The suicide bombing of the Riyadh compound set off fires that burned through the night .

2 of 6
Ambulances rushed to the scene - many children are thought to be among the injured..

3 of 6
Rescuers searched through the debris as Saudi officials said the attack bore the hallmarks of al-Qaeda .

4 of 6
There were many injured; most of the residents were from the Arab world.

5 of 6
As dawn came the extent of the damage and losses became clearer.

6 of 6
The clear up has begun as many ask why the compound was targeted.