A man has died after a shark attack off a popular Perth beach. Key points and original sources are listed below.

• A man has died after a shark attack off a popular Perth beach.S1S2

• It is the second shark attack in Western Australia this week.S4

• Dozens of beachgoers witnessed the attack.S5

• Authorities called to Sorrento Beach on Friday morning following reports of shark-related incidentFollow our Australia news live blog for latest updatesGet our breaking news email, free app or daily news podcastA man has died after being bitten by a shark off...S6