EVANSVILLE, Ind. (AP) — Authorities worked Thursday to decide the trigger of a house explosion in a southern Indiana neighborhood that killed three people today and remaining an additional individual hospitalized.

The explosion Wednesday afternoon in Evansville broken 39 households and crews on Thursday early morning finished a secondary look for of properties that had been still left unstable by the explosion and no extra victims were observed, Hearth Main Mike Connelly told reporters.

“It’s a big relief, for most people,” main reported of the outcomes of the secondary look for.

Eleven of the ruined houses have been uninhabitable and will have to be demolished, Connelly explained, and locating a bring about is envisioned to be a “very tiresome approach — and lengthy.”

Names of the dead hadn’t been unveiled as of Thursday early morning. Accidents to the fourth victim weren’t thought of life-threatening, Connelly explained.

Suzanne Dabkowski, an Bureau of Alcoholic beverages, Tobacco, Firearms and Explosives, spokeswoman, stated Thursday the company just can’t converse to any probable triggers of the explosion. Dabkowski claimed the ATF has accredited explosive specialists and certified firearms investigators on-web-site in Evansville, and presently they were assisting in the investigation.

Evansville is positioned together Indiana’s border with Kentucky. The blast remaining particles strewn in excess of a 100-foot (30-meter) radius. Particles involved development resources like wood boards, window glass and insulation.

CenterPoint Electrical power, the regional gas utility, was last called to the house in January 2018, Connelly mentioned Wednesday.

“CenterPoint Strength is performing intently with the Evansville Hearth Section, Point out Fire Marshal and other organizations as the investigation of this incident continues,” the utility stated.

It was the 2nd household explosion in the location in just in excess of 5 decades. A residence explosion on June 27, 2017, killed two individuals and hurt three other folks.

Wednesday’s explosion also brought to intellect a huge blast in 2012 that wrecked or destroyed additional than 80 residences on Indianapolis’ south side and killed two men and women. A person was