An 18-year-old man has died after jumping into the Swan River from the cliffs at Blackwall Reach.
Police said the Dianella man was with friends at the cliffs near Bicton in Perth's south when the incident happened just after 5pm on Friday afternoon.
The man jumped from the cliffs down to the water, where police said he "got into difficulties," with friends trying to help him.
They raised the alarm and Water Police rushed to the scene with a police diver getting the man onto the police boat where they worked to resuscitate him.
St John Ambulance then took the man to Fiona Stanley Hospital - but he was later declared deceeased.
The man's death is the second this year at the infamous thrill seeker spot after a Taiwanese tourist died after jumping from Blackwall Reach.