A perimeter set up behind the Quebec national assembly has been lifted after police determined the briefcase that prompted the security measures did not contain anything dangerous. 

Security personnel at the national assembly said a man arrived on the grounds carrying a black briefcase earlier this morning. 

Quebec provincial police said the man asked for the briefcase to be delivered to an individual inside the building.

Security became suspicious and called the Quebec provincial police.

It's not clear who the intended recipient was.

A 41-year-old man from Lévis was taken into police custody. 

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The bomb squad is outside the Quebec national assembly to investigate a suspicious package. (CBC)

The SQ bomb squad was called in to deal with the briefcase, which was left outside the building. 

The area was re-opened a few hours after the incident began.