Security has been stepped up at federal government buildings in Ottawa and Gatineau.
According to an internal memo obtained by CFRA, officials say a few individuals have been seen exhibiting suspicious behaviour.
However, they're not aware of any specific threat.
The Ottawa Citizen reported late last week that two men walked inside the CSE building on Ogilvie, claiming they wanted to see if their smartphones would work or if they were being jammed.
The memo tells federal employees to immediately report any suspicious activity, unattended packages or unauthorized entry.