More than 550 kilograms of sanitary towels containing a radioactive substance were confiscated at Beirut international airport, officials said on Friday, Reuters reported.

The Ministry of Finance of Lebanon said in statement that 30 cartons of confiscated pads will be sent to the Lebanese Atomic Energy Agency for checks before being returned to the exporter.

It declined to name the company that made the pads, or the name of the substance. Officials also did not say what level of radioactivity had been detected.

Customs officials said that the sanitary towels were Chinese-made and delivered to Lebanon through Dubai.

These pads were discovered during regular checks on freight arriving at the airport, Lenta reported.