A Yamatji woman is dead after she was shot by police in Western Australia. 

The shooting happened about 6.15pm on Tuesday after officers went to a home in Geraldton, a regional town 400km north of Perth.

"During an incident at the address, an officer discharged their firearm, causing a woman to receive a gunshot wound," WA police said in a statement. 

"The 29-year-old woman was conveyed by ambulance to Geraldton Regional Hospital where she later died." 

Major Crime officers have travelled to Geraldton to begin an investigation. 

The Police Internal Affairs Unit will also conduct a separate inquiry.