Four hospitalised after cop car crash

Two police officers, a woman and her young child have gone to hospital after two cars collided in western Brisbane.

A crash that put two police officers, a woman and a child in hospital is being investigated by police.

The marked police car collided with the woman's vehicle at Redbank, on Brisbane's western outskirts, on Wednesday morning.

The woman and her young daughter were taken to Ipswich General Hospital, while the two officers went to St Andrew's Hospital for mandatory checks.