New information about Paris attackers emerges

PARIS, France- Belgian officials say seven people are being detained in Belgium in relation to the Paris attacks.

Meanwhile, Balkan authorities are tracking the travels of a man whose Syrian passport was found next to a dead suicide bomber at France’s national stadium on Friday night. Officials in Greece say the passport’s owner entered the country on Oct. 3 through Leros, one of the eastern Aegean islands that tens of thousands of people fleeing war and poverty have been using as a gateway into the 28-nation European Union.

Serbian police say he registered at its border entry with Macedonia on Oct. 7.

Croatian police say he was checked at a refugee center on Oct. 8. Police spokeswoman Helena Biocic said Sunday the man was not flagged as suspicious and continued his journey toward Hungary and Austria.

It is still not yet clear if the Syrian passport is fake or real, or if it belonged to the dead bomber. European officials say there is a brisk trade in fake Syrian passports to help people get refugee status in the EU.

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A French police official says three Kalashnikovs have been found inside a Seat car that was used in the attacks on central Paris.

The official, who could not be named because the investigation is ongoing, said the weapons have not yet been analyzed.

Two cars are known to be involved in the attacks that left 129 people dead and over 350 wounded: a Volkswagen Polo parked at the Bataclan concert hall and the Seat where the arms were found Sunday. The Seat appeared to be involved in the carnage at Paris bars and restaurants.