The international transport hub was evacuated shortly before midnight Monday to allow members of the Research and Intervention Brigade (BRI) police unit to search the train which had come from the northern city of Valenciennes, according to a source close to the enquiry.
Police ended the operation at 01:50 am Tuesday without success.
2hrs ago. French counterterrorism Rapid Intervention Brigade surrounded Gare du Nord hunting for 3 terror suspects. https://t.co/GSsNbjodX8
— Malcolm Nance (@MalcolmNance) May 8, 2017
“Checking complete, gradual return to normal,” police tweeted.
The team were deployed after the alarm was raised by ticket office staff, sources said.
The operation comes two weeks after armed police arrested a man carrying a knife at the station.
France is on edge after having suffered a string of deadly attacks in recent years.