Teen dies after police called to NSW pool

A teenage boy has died at a public pool in Newcastle after police arrived to investigate an alleged assault on an employee.

Police attended Lambton Pool just after 5pm on Tuesday following reports a boy had assaulted an employee.

Witnesses restrained the 17-year-old until officers arrived.

However, the teenager required treatment by paramedics and was taken to John Hunter Hospital - where he later died.

A critical incident investigation has now been launched, and it will be subject to an independent review.

NSW Police would not comment further on the nature of the teen's injuries.

They are appealing for witnesses to come forward.