TRENTON, N.J. — Officials are trying to determine the cause of some reported rumblings that shook areas of southern New Jersey.

Residents in several counties reported hearing booms or feeling the ground shake early Wednesday.

But the United States Geological Survey didn’t report any earthquake activity in New Jersey. And National Weather Service officials say there’s “nothing weather-related” that would cause the booms.

Officials say sonic booms have been caused in the past by military planes doing supersonic drills along the east coast, but it wasn’t immediately clear if that’s what happened Wednesday.

No injuries or damage were reported.

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