MINNEAPOLIS (WCCO) – Officials in northwestern Minnesota say an area Walmart was briefly evacuated and searched Thursday afternoon following a report of a man with a gun.

Bailey Hurley, a reporter with Valley News Live in Fargo, reported that the Walmart in Dilworth was evacuated around 12:30 p.m. Shoppers and employees were let back into the store about 15 minutes later.

Dilworth police say a full search of the building was completed and the all-clear was given. An investigation into what prompted the call is underway.

Thursday’s evacuation comes amid heightened concern over gun violence in America after two weekend shootings, one at a Walmart in El Paso Texas, left more than 30 people dead and dozens more injured.