Listen to this story
Subscriber Benefit
As a subscriber you can listen to articles at work, in the car, or while you work out. Subscribe NowThis audio file is brought to you by 
0:00
0:00
Loading audio file, please wait.
An explosion late Thursday afternoon at Crane Naval Surface Warfare Center sent four employees to a hospital. A spokesman said the explosion happened during a routine clean-up operation at the facility about 85 miles southwest of Indianapolis. The employees were released Thursday night. Crane is looking into the cause of the explosion.
Please enable JavaScript to view this content.