Polish authorities have arrested four individuals they allege planned to send parcels containing camouflaged explosives and dangerous materials to Canada and the United States, according to Poland’s .

The investigation began on Aug. 5, based on data obtained by Poland’s Internal Security Agency in co-operation with the Civil Aviation Authority.

In an email to CTVNews.ca, an RCMP spokesperson said the agency was aware of the arrests made by Polish authorities but cannot provide further detail, in order to preserve the integrity of the investigation.

This is a developing story that will be updated as more details become available...