A search is underway in Western Australia after a tiny radioactive capsule went missing. The capsule, which is used to treat cancer, was found to be missing on Monday after it was used to treat a patient.

The capsule, which is roughly the size of a grain of rice, contains a radioactive material called ruthenium-106. If ingested, the material can cause severe illness and even death.

Authorities in Australia have launched an urgent search for the capsule, warning the public to be vigilant and to report any suspicious objects they find.

At the same time, medical experts are warning that the capsule, if found, should not be touched and should be reported to the authorities immediately.

The search for the capsule is ongoing and authorities have asked the public to remain vigilant.

This story was reported by Reuters, BBC News, NPR, and CNN.