What do you get: You have 100+ 911 calls and 50 emergency responders

Several residents called police and news outlets saying that they had seen the lights and/or had experienced what felt like a large explosion as far away as Kokomo.

Police think that it may have resulted from military flares or even an astronomical event.

"With the reports of sparks things falling from the sky, our aviation section reported that a meteor shower activity over the last couple of nights. We had a similar instance in Logansport yesterday with a loud bang that I believe that they had classified as a meteor shower. So to our best guess tonight Mother Nature has created this big incident," said Sgt. Jeremy Kelly, Indiana State Police.

"I think it rocked everybody's house and I am scared for everybody. I don't know if it was a meteorite or if it was a plane or if it was jet going over from Grissom, it could have been numerous things," said Jodi Brown from Kokomo.

Initial reports brought countless police, fire and rescue units to an area near the intersection of U.S. 31 and 300 North in Tipton County. But, after finding nothing while searching that area, the search began moving west and north back into Howard County.

Units responding included sheriff deputies from Howard and Tipton counties, Kokomo and Tipton city police, Indiana State Police, Howard County Emergency Management Agency and fire departments from Harrison and Taylor townships, Sharpsville and Kempton.

After nearly an hour of searching, however, no debris of any sort had been found. Authorities at Grissom Air Reserve Base and Indianapolis International Airport were contacted, but they told police they had no aircraft missing.

Police believe it is possible that the boom and lights may have been caused by a meteor or other atmospheric disturbance. Immediately after the boom, there was a slight metallic smell in the air in downtown Kokomo.

We will continue to follow this story throughout the day here on WISHTV.com and on 24-Hour News 8.

WISH-TV news gathering partner The Kokomo Tribune contributed to this report.