1 held from Paris train station after waving knife at police

A man was arrested Saturday afternoon at the North Railway Station in Paris after waving a knife to a gendarmerie patrol, local broadcaster BFMTV reported.

The man approached a gendarmerie patrol with a knife in his hand. The officers then kept the man at a distance with their weapons before making the arrest, according to the report.

Police were dispatched to search for other suspicious signs around the station.

Numerous passengers who witnessed the scene were panic-stricken and began to run, leaving their luggage on the ground, the report said.

Security concerns are running high in Paris after Thursday evening's shooting in the Champs-Elysees avenue, which killed one police officer and injured two others.

French authorities have vowed to safeguard the presidential election, which starts on Sunday, with "all right means."