AFP on the Schoolbus attack: "Immediately after it was hit, militants in Gaza fired mortar shells [at the] rescue workers"

Some key sentences:

Television footage showed the yellow bus with the back end badly damaged and the windscreen blown out. A small teddy bear lay on the ground among shards of glass and pools of blood.

The bus had just finished dropping off dozens of youngsters.

Immediately after it was hit, militants in Gaza fired mortar shells [at the] rescue workers, an AFP correspondent said.