Police in France arrested 12 people suspected of helping gunmen in last week’s Paris killings, the city prosecutor’s office said on Friday as U.S. Secretary of State John Kerry arrived for nuclear talks with Iran.

Police in France arrested 12 people suspected of helping gunmen in last week's Paris killings, the city prosecutor's office said on Friday as U.S. Secretary of State John Kerry arrived for nuclear talks with Iran.

The arrests came after Belgian police killed two men who fired on them during one of about a dozen raids on Thursday against a group and German police said they had arrested two people following a raid on 11 properties linked to radical Salafists.

Centered in southern Paris suburbs including the Montrouge area where a young policewoman was killed in the attacks, the arrests were for suspected "logistical support" for the shootings, an official said.

Seventeen victims and the three attackers died in three days of violence in Paris last week that began with an assault on the offices of satirical weekly Charlie Hebdo.

Paris's Gare de l'Est train station was evacuated at 8:00 a.m. local time (07:00 GMT) after an alert but reopened about an hour later, the SNCF state railway said, without giving further details.
Investigators are still poring over the complex chain of events that led to three French nationals - two brothers with Algerian roots and a third of African extraction - perpetrating the worst attacks on French soil for decades.