Police are investigating the sudden death of a three-year-old girl in Mount Isa, who was pronounced dead after being taken to hospital.

An investigation is under way to determine how a three-year-old girl died in an outback Queensland home.

Police say the toddler was driven from a home in Mount Isa to the mining town’s hospital, where she was declared dead about 7.30pm on Monday.

No other information has been released.