Ambulance Victoria confirmed they were called to the scene about 1am.

The worker, a woman in her 30s, was taken to the Ballarat Base Hospital in a stable condition with upper body injuries - it's understood they weren't serious.

WorkSafe confirmed it is making inquiries.

A spokesperson for McCain said the incident is under investigation.

"McCain Foods can confirm there was a safety incident at our Ballarat Prepared Foods Plant on Tuesday evening," they said in a statement.

"The staff member was immediately attended by our first aid team before paramedics arrived and transported them to Ballarat Base Hospital for assessment and treatment. Following assessment, no fracture has been confirmed at this time.

"The area was immediately cordoned off and teams returned to work without further incident.

"WorkSafe has been contacted, and will conduct a review of the site and safety procedures today, as per normal process.

"We will conduct a thorough review over coming days to ensure the cause is identified."

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