Sydney teen charged over double stabbing

A 15-year-old boy has been charged over the stabbing of two other teenagers in a violent altercation in Sydney's west.

The boy was arrested at about 8pm on Monday and charged with two counts of intent to cause grievous bodily harm.

The two other boys, both 14, were stabbed at a home in Prospect, near Blacktown on Monday afternoon.

One was airlifted to hospital with more severe injuries, while the second was taken by ambulance.

Both are in Westmead Hospital in serious but stable conditions.

The arrested boy was refused bail and will appear in a children's court on Tuesday.