A South Korean border city has cast doubt on reports that North Korea tested loudspeakers aimed at the South on Thursday morning, after local media cited residents who said they had heard the broadcasts.

“We are unable to determine exactly what happened,” an official from Paju City’s security team told NK News, suggesting a resident may have mistaken other noises for loudspeakers. “If the noise was caused by loudspeakers broadcasting toward the South, the military would likely make an official announcement first.”

Seoul’s National Intelligence Service later denied the reports, saying they were based on incorrect information from a