explosion

The chance of being killed by a meteorite is approximately 1 in 75 million. If experts confirm a meteorite caused the blast, the death would be the first of its kind since 1825.

The Tunisian President declared a state of emergency for 30 days and an overnight curfew following the explosion that ripped through a bus carrying presidential security on a main road in Tunis.

Most of those still unaccounted for are firefighters who responded to last week's explosions, officials say.