Homicide Squad detectives have arrested an 18-year-old man in Southbank in relation to the fatal shooting at a Prahran nightclub in April.
Detectives executed a search warrant at Linacre Drive, Bundoora about 10.20am.
The Bundoora man is currently in custody and assisting police with their enquiries.
Police yesterday charged a 25-year-old man with accessory after the fact to murder/assist principal offender, prohibited person possess firearm, stalking, make threats to kill and other offences.
He has been remanded to appear before Melbourne Magistrates' Court on 2 July.
Two people were killed during the incident on 14 April and another four people were injured.
Detectives are continuing to appeal for anyone with information about the shooting or a number of vehicles believed to be connected to it, to come forward.
The investigation remains ongoing.
Anyone with information is urged to contact Crime Stoppers on ?1800 333 000? or submit a confidential crime report at www.crimestoppers.com.au ?
