Man arrested and charged by task force investigating Curtis Cheng's death

A man has been arrested in Sydney's west and charged with gun offences by a police task force investigating the shooting death of Curtis Cheng.

Masood Zakaria​, 21, was arrested at Westmead on Wednesday morning.

Officers from the NSW Joint Counter Terrorism Team and the Middle Eastern Organised Crime Squad took Mr Zakaria to Parramatta Police Station.

He was charged with possessing an unauthorised pistol, suppling a firearm to a person unauthorised to possess, and acquiring a pistol subject to a firearms prohibition order.

Mr Zakaria was due to appear at Parramatta Local Court on Wednesday afternoon.

He was arrested as part of the "ongoing investigation" into Mr Cheng's death, police said.

Strike Force Pequin, also known as Strike Force Fellows, was formed by counter-terror police after Mr Cheng was shot dead as he left NSW Police headquarters in Parramatta on October 2015.

In a statement, police said there is "no ongoing threat to the community" in relation to the arrest.