OpenAI has fired three of its researchers after an investigation found they violated policies on handling sensitive information.

The AI company announced the decision in a post on X on Friday. The firings took place last week, following an internal investigation.

OpenAI did not disclose the identities of the researchers or the exact nature of the violations. The company said the probe concluded they had breached its rules on sensitive information.

The move comes at a turbulent time for the company. OpenAI recently told investors its annualized revenue was lower than previously indicated, triggering a selloff in AI-related stocks.

Tech firms are tightening internal controls as competition in artificial intelligence intensifies. Handling of model details, training data and strategic plans has become a sensitive area across the industry."" The company has faced growing scrutiny over its internal practices. Investors are watching how the leadership handles the fallout. OpenAI said it remains committed to its safety and security standards.