PARIS (AFP) - A third car possibly linked to the deadly Paris attacks was found early Tuesday (Nov 17) in a northern district of the French capital, police sources told AFP.

"A black (Renault) Clio found ... in the 18th district may have been used in the preparation of the attacks," a source said.

"The car was seen on the A1 motorway as part of what may have been preparatory contacts between groups in Paris and Belgium," the source added.

But another source said further analysis by forensic investigators was needed "to determine its involvement." The car, found parked partly over a pedestrian crossing, has Belgian number-plates, an AFP journalist said.

After checking the vehicle was not booby-trapped, it was towed away by police for further examination.

Two other Belgian-registered vehicles have been linked to the Paris attacks Friday that left 129 people dead.