From the starting point of 'On 4 5 May a mass of mud and rocks was swept down by Pelee's White River (Riviyre Blanche) over a factory, killing 25 people.', does 'Mud and rocks were swept away by the river.' follow as a logical conclusion?
On 4 5 May a mass of mud and rocks was swept down by Pelee's White River (Riviyre Blanche) over a factory, killing 25 people.###Mud and rocks were swept away by the river.