A loud boom has Natchitoches Parish sheriff's deputies searching for a source. Authorities say the boom happened in south Natchitoches Parish just after 5:30 Sunday evening. The incident reportedly shook several residences.

Deputies checked the area searching for a source but so far, nothing has been found. Authorities say they also checked with Fort Polk officials and no military training operations were held at Peason Ridge Sunday.

On Monday, authorities contacted the National Weather Service's Shreveport office. NWS officials claim that no debris field was observed on radar during that time period.

The source of the boom remains under investigation.

No injuries were reported.