Perth traffic: Vincent Street ramp reopened after police incident caused morning mayhem on Mitchell Freeway

A popular freeway off-ramp has been reopened after a police incident caused morning commute mayhem.

The incident on Mitchell Freeway southbound on Wednesday morning resulted in both lanes of the Vincent St off-ramp in Leederville being closed to motorists just before 9am.

Vision from the scene showed four police vehicles with lights at the scene.

St John WA confirmed to PerthNow that no ambulances were sent to the scene.

Main Roads has since reopened the exit to motorists and traffic is flowing through the area.