A four-year-old girl has died and her sister has been seriously injured in a road crash in Co Cork.

The crash happened at 4.05pm on the main Cork to Mallow road at Bweeng.   

The young girl and her sister were travelling in a van with their parents when the crash occurred.

No other vehicle was involved.

The girl was taken to Cork University Hospital, but was pronounced dead there shortly afterwards.

Her sister's injuries are not life-threatening.

Their parents, who are in their 20s, were brought to hospital but not kept in.

A garda investigation is under way into the cause of the tragedy.