Two cars collided on the B6042 Crags Road in Creswell at about 4.45pm yesterday (Monday 24th September), and two girls, a five-year old and a toddler who was nearly two, both suffered fatal injuries.
Their 29-year-old mother and older sister, who is seven, were both taken to hospital with minor injuries.
It's thought the family come from Worksop in Nottinghamshire.
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Any thundery rain or showers will quickly die away during the evening. Tomorrow, dry with long spells of sunshine and light winds.
Becoming dry with some late evening sunshine, then largely clear overnight. Tomorrow, a fresh start, though with plenty of sunshine.