Explosion damages homes in Evansville, Indiana.
(CNN) --
Three people were killed and at least 39 homes were damaged after an explosion in Evansville, Indiana Fire Department Chief Mike Connelly confirmed at a news conference Wednesday.
"There could be other victims, we haven't completed our search," Connelly said, "the buildings are not safe to enter yet."
"The initial survey of the damage is that 39 houses suffered severe damage to minors," Connelly told reporters.
A structural collapse team was called in to inspect buildings that were thought to be in danger of collapsing.
A structural collapse team was called in to inspect buildings that were thought to be in danger of collapsing.
Multiple agencies are on scene and authorities have asked residents to stay away from the area.
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An investigation into the incident is underway, Connelly added.
CNN's Sara Smart contributed to this story.
