A Montreal man is facing a terrorism-related charge after police were tipped off by his family that he had recently become radicalized.
Montreal police spokesman Ian Lafreniere says authorities searched his apartment on Friday and found a city map that showed the co-ordinates of four different police stations.
The 21-year-old man is scheduled to appear in court this afternoon.
Lafreniere says no direct threats were made.
He called the arrest a "preventive" measure.
Montreal police officers have been told to be vigilant in the wake of the shooting deaths of three officers in the United States on the weekend.
"It is a 21-year-old who was apprehended," Lafreniere said in an interview. "We got a flag that was raised by relatives of the suspect, saying, you know what, he's not doing well, he's getting radicalized to violence."
The man is charged under a Criminal Code provision that allows for the arrest of someone who "commits an act that, in all the circumstances, is likely to cause a reasonable apprehension that terrorist activity is occurring or will occur, without believing that such activity is occurring or will occur."