Police said that the death toll from the massacre had reached eight victims, with 21 people injured.
Explosive experts from the Munich police on Saturday were examining a backpack found on a dead man suspected of being one of the assailants in a shooting rampage,German DPA news agencyreported.
The body of the man was found about onekilometre(0.6 miles) away from the mall where the shootings took place, DPA said, as police said they were hunting up to three gunmen still at large.
Police said that the death toll from the massacre had reached eight victims, with 21 people injured.
On its Twitter account, Munich police added that all public transportation networks were running again after being suspended in the aftermath of the shooting.