Two toddlers and four women are injured as a train collides with a truck at a level crossing in Perth's east.

A lengthy overnight cleanup of a crash between a train and truck has been complete, allowing a return to regular services across the Perth rail network.

CCTV footage has captured the shocking moment a train slammed into a truck after it rolled onto the tracks despite boom gates being closed and warning bells sounding.

Chalmers has given a speech and taken part in a Q&A with CME chief executive Aaron Morey, highlighting some key pointers from the budget that will impact WA – particularly the state’s mining sector.

Cars were hit with debris, including a tyre that lodged on a windscreen, and two toddlers were caught up in the chaos in Perth.

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Five passengers were injured including two toddlers during the incident just before 4pm on Wednesday.

A driver has been seriously injured in a major crash that shut down a train line and left businesses without power for hours.