French police search for motive after five shot dead near Dunkirk

Police investigating whether suspect had workplace dispute with firms where three of victims worked

French police are still trying to establish the motive for five murders that were committed in the space of less than two hours near the northern port city of Dunkirk on Saturday afternoon.

A man who handed himself into police later the same day, claiming to be responsible for all five fatal shootings, has no criminal record and was not known to police or the courts, prosecutors said on Sunday.

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