A tourism plane crash has left four people dead in Orne, northwest France, local media reported Wednesday.

The plane, a Robin DR 400, fell down at 17:30 local time (1630 GMT) while it was landing in Argentan airfield, the daily Ouest France said on its website.

The four passengers on board, a woman and her three children, aged 5 to 15 years old, were all killed in the crash, it added.

It's unknown yet whether the crash was caused by the pilot's fault or mechanic problems of the plane.