Field tests involving explosives for military operations will pick up again Wednesday and Friday at sites on Bovina Cutoff Road near the Big Black River, likely causing more loud booms, a U.S. Army Engineer Research and Development Center official said.

Calls to Vicksburg Warren 911 early Monday from various points south of Vicksburg city limits, described loud booms, much like a round of similar reports June 7 investigated by Warren County officials that revealed nothing. Some officials had called Entergy, which reported no outages or transformer issues.

Bovina Cutoff intersects with Mississippi 27 near the Big Black River on the county’s southern boundary.

ERDC officials confirmed the tests after sheriff’s deputies and the emergency management agency looked into it.

“We did two blast tests,” said spokesman Wayne Stroupe, adding there’s no threat to public safety from the routine tests. “It’s nothing to be alarmed over.”

Dispatchers took seven calls Monday, through the morning to about 2 p.m., E-911 director Jason Tatum said, noting that nearly all the day’s reports were from the same residents who called 911 about the booms a few weeks ago.

The county plans to become involved in notifications of the tests in the future, possibly through the general notifications feature on the CodeRed alert system, EMA director John Elfer said.

“I have asked them to notify us and E-911 in the future so that we will know what to tell the public,” Elfer said.

ERDC’s indoor testing at its Halls Ferry Road campus has included studies of deep-sea sediment behaviors and on plants to analyze materials used on the battlefield, among other highly specialized analysis.