NEW YORK (AP) — Authorities say a LaGuardia Airport screener spotted a suspicious-looking item in a carry-on bag, tested it for explosives and determined it did not pose a threat.

But the incident caused a security scare hours later.

Workers on the next shift saw the item, couldn’t determine what it was and called the bomb squad.

The TSA said the item was a homeopathic medical device that could be mistaken for two pipe bombs. It was discovered at 11:30 a.m. Monday.

The agency said in a statement that because of its appearance it was not allowed through the checkpoint. It said the owner surrendered it voluntarily.

The TSA said the Port Authority bomb squad was called “out of an abundance of caution.”

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