A crash on the Mandurah Estuary Bridge in Halls Head caused massive traffic delays on Wednesday morning.
The crash, believed to involve a bus and three cars, happened just before 9am.
A St John Ambulance spokesperson said a woman in her 20s and a man in his 50s have both been conveyed to Peel Health Campus with non life-threatening injuries.
The Mandurah Estuary Bridge has since reopened.

Accused dirt bike hoons charged by Mandurah Police
Heavy rainfall, thunderstorms to lash Mandurah down to Busselton
Drivers escape serious injury after West Pinjarra, Baldivis crashes
Police investigate stabbing of two men at Warnbro home
Shark sighted in Dawesville Channel
City of Rockingham has highest number of households receiving rent relief
Man fined thousands for keeping dozens of undersize blue swimmer crabs caught off Coodanup Foreshore
2026 Mandurah ArtsĀ Festival to feature month-long program of performances, workshops
Candidates locked-in for Rockingham council vacancy
