People treated for injuries and firearm seized after shooting in Croydon Park in city’s inner west on Sunday night

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There was an exchange of gunfire between New South Wales police and an alleged gunman before the 60-year-old was arrested in Sydney on Sunday night, police claim.

Artemios Mintzas allegedly shot “about 50” high-powered rifle rounds at pedestrians, cars and buildings in Croydon Park over two hours before he was apprehended by tactical officers.