Police are hunting for an attacker who stabbed a young man in the chest during a fight in Toowoomba, west of Brisbane.

A young man is in a serious condition in hospital after being stabbed in the chest during a fight west of Brisbane.

Police say the 25-year-old victim got into a fight with at least two other men outside a Toowoomba property on Thursday afternoon.

The man was stabbed in the chest with a knife and was taken to the Toowoomba Base hospital in a serious condition.

Police have appealed for witnesses or anyone with information about the incident to come forward.