|Smoke Bomb on School Bus Sends Children to Hospital|
Some of the children were transferred to the hospital as a precaution. All were released soon after it was clear that none of them were harmed.
Police believe that someone on the bus set off the device, which was a type of firework that is designed to release plumes of thick smoke. When such a device is exploded inside a closed, contained space, the police added, there is a danger that the smoke can cause breathing problems or other medical ailments.