POLICE have released images of the men believed to be involved in the BASE jumping incident in Perth CBD on Tuesday.
Footage was circulated online of one of the four people involved leaping from Esplanade Tower before a parachute opens, on Tuesday morning.
A man was taken into custody by police over the incident but the rest are yet to be identified.
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Police would like identify these three men and determine their movements from 8am on September 10, as they may be able to assist with inquiries.
Detectives found a car and a man at a house in North Perth in relation to the incident on Tuesday afternoon.
Police have released images of additional cars they were searching for as they would like to speak to the occupants of the vehicles.
The cars, believed to be a Silver Rio Cerato and a Mitsubishi Pajero 4WD, were seen along Bruce Road, Wattle Grove around 9:30am on September 10.
BASE jumping is a high-risk activity which involves parachuting, or wingsuit flying, from a fixed structure or cliff.
Anyone who has CCTV, dash-cam or any other pictures that may assist with the investigation are asked to provide it to police via the link here.
Anyone with any information is asked to contact Crime Stoppers on 1800 333 000 or report online at crimestopperswa.com.au.