Authorities in two countries and two states searched Tuesday for a pencil-shaped cylinder containing the radioactive element cobalt-60 that was reported missing by a Pennsylvania company.

Berthold Systems Inc. of Sewick-ley reported the incident to the Nuclear Regulatory Commission Tuesday shortly after discovering the source was missing.Authorities in West Germany, New York and Pennsylvania were notified and joined the search for the missing radiation source.

The container arrived in Sewick-ley, about 10 miles from Pittsburgh, showing signs of damage. A padlock that normally secures the lid to the shielding container was missing, the NRC said.