There are concerns more victims may still be inside buildings hit by the initial explosion.

BBC: Norway hit by deadly bomb and shooting attacks

Conde Inn, said he saw and heard the initial explosion when it happened.

CNN: Two fuel barges on Alabama's Mobile River explode; 3 hurt

The initial explosion sent a wave of fire and debris hurtling through the air to two rows of homes nearby.

WSJ: Fertilizer-Plant Blast Kills Five to 15 in Texas

Perhaps, it was hypothesised, the absent pulsars might have been kicked away from their parental nebulae during the initial explosion.

ECONOMIST: Pulsars

No one knows how the first black holes were formed after the Big Bang, the initial explosion that created our universe.

CNN: Black holes abound in early universe

For example, if an autopsy suggests a victim lived beyond the initial explosion and may have suffered as the plane went down, additional damages might be sought, if a lawsuit were filed.

CNN: First autopsy report released from TWA 800 crash

Eleven people died in the initial Deepwater Horizon explosion, which then caused the biggest ever offshore oil spill, in the Gulf of Mexico.

BBC: BP fined $3bn to $5bn

Reports said some 30 firefighters who had been tackling the initial fire were injured as they were caught in the explosion.

BBC: Burma blast kills at least 17 in Rangoon

Initial reports had suggested the explosion was caused by a gas cylinder.

BBC: India restaurant bomb blast kills nine in Pune

The initial report to police that day called it an apparent transformer explosion at the trade center.

WSJ: NY marks 20th anniversary of World Trade bombing

Initial tests showed the device contained ammonium nitrate, the same volatile substance that sparked a massive explosion last month at a fertilizer distribution plant 110 miles north in West, Texas, said Austin fire Lt.

CNN: Austin bomb an amateur job or something more insidious?