A third teenager has been charged over the alleged attempted murder and stabbing of a security guard on the Gold Coast.
Police and paramedics were called to Westfield Helensvale on Friday morning following reports of a disturbance.
Detectives said several teenagers fled the scene in a stolen black Holden Trax, which was later tracked down about an hour later on Distillery Road at Beenleigh.
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Four people were taken into custody.
The security guard remains in Gold Coast University Hospital in a serious but stable condition.
On Saturday, a 17-year-old boy from Beenleigh was charged with attempted murder.
That charge came after a 19-year-old Oxenford man and 13-year-old Upper Coomera girl were charged over the incident on Friday.
Police said they have now arrested and charged all people allegedly involved.
