Muscle Building Blog

Allentown, Pa. (AP) - A natural gas explosion rocked a downtown neighborhood overnight, killing five people, leveling two houses and spawning fires that burned for hours through an entire row of

A natural gas explosion rocked a downtown neighborhood overnight, killing five people, leveling two houses and spawning fires that burned for hours through an entire row of neighboring homes.

The US Chemical Safety Board (CSB) was due to vote last night on the measure in a bid to tackle explosions and fires caused when fuel gas is used to clean or purge gas pipes of debris, air or other substances. Such an exercise is usually carried out during maintenance or construction.