Chain reaction crash kills 3 in Croatia

Police in Croatia say three people have died and 16 were injured in a chain reaction crash involving more than 20 vehicles.

How first chain reaction transformed world after WW-II

Enrico Fermi and his colleagues at the University of Chicago engineered the first controlled, self-sustaining nuclear chain reaction 70 years ago.

Fukushima: Japan leaders feared "devil`s chain reaction"

Yukio Edano told the panel that at the height of tension he feared a "devil`s chain reaction".