Habak added: "The scene was awful - especially seeing children wailing and dying in front of you".
When he tried to save another child, only to discover that they already died, Habak collapsed in grief.
Habak has no idea whether the injured child survived.
But he wasn't. Habak could see the boy was barely breathing.
He checked on a dead child and amid the chaos moved to another apparently lifeless body.
Habak said that he along with his colleagues were on duty when the blast took place.
According to a report by CNN, in the aftermath of a bomb attack on buses killing reportedly 126 people, photographer and activist Abd Alkader Habak left his camera to rescue numerous children - some of their bodies charred even - who had got injured. Picking him up, he ran towards the nearest ambulance, away from the line of fire.
"So I decided along with my colleagues that we'd put our cameras aside and start rescuing injured people", he added.
Gut-wrenching photographs show Abd Alkader Habak running from the scene holding a young boy in his arms. He stated that he also helped to evacuate the injured but then started to take pictures: "I wanted to film everything in order to make sure there was accountability". The attack claimed 126 lives, killing more than 80 children. "I feel proud that there was a young journalist there helping save lives".
He bravely ran back to the scene to see if he could save anyone else. The child he came across next, was charred.
Pictures shared in the aftermath of the explosion show bodies lying on the ground and fires belching out thick black plumes of smoke.
Mr Habak told CNN that he had been documenting the evacuation of civilians from the besieged towns of Kefraya and Foua, held by forces loyal to Syrian president, Bashar al-Assad.
One of his colleagues witnessed the entire scene and captured the unique moments.