No one was hurt or killed in the incident and the bomb failed to explode.

He, too, ran and escaped when his bombs failed to go off.

Luckily, the bomb was defective and failed to go off.

The bomb failed to go off and was discovered by passersby.

The problem was that many bombs had failed to explode.

"One bomb failed to explode, and it was in the piece we need."

The bombs failed to have the predicted explosive power in practice.

He could not explain why the bomb had failed to explode.

However the bomb initially failed to explode near its target.

All the bombs missed the ship and failed to explode.