A man and woman have died and three people have been injured after a two-car crash north of Perth.

A Suzuki Baleno and an Isuzu D-Max ute collided on Indian Ocean Drive on Wedge Island about 2.40pm yesterday.

The road is the only one on the island that is just 400 metres long.

The 46-year-old male driver and 47-year-old female passenger of the Suzuki sustained critical injuries and died at the scene.

The 64-year-old female driver of the ute and three passengers sustained minor injuries and were taken to Joondalup Health Campus on the mainland.

Wedge Island is popular with campers who look to stay on the beach or in shacks, and is also popular for those who want to go 4WD driving.

Authorities are investigating the incident and urging any witnesses or anyone with dash cam or mobile foo

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