A suicidal Disneyland Paris worker had to be restrained after trying to set himself on fire after he was called to a meeting with theme park bosses.
The National Union of Autonomous Trade Unions (Unsa), a French confederation of trade unions, has said it is looking into the incident, which occurred last month.
Patrick Maldidier, an Unsa representative, told the Independent: "He emptied a barrel of petrol over his head and took a lighter to set fire... But a colleague jumped on him at the last moment, preventing him from committing the irreparable."
The union has sent a letter to Disneyland Paris saying it has opened its own investigation into the incident. The letter warns of a " deterioration of the social climate which is noticed by us as well as the employees within the company".
It added: "We believe that this deterioration is related to changes in working conditions. This deterioration of the social climate is also accentuated by an absence of dialogue and a sharp increase in disciplinary sanctions."
Unsa also says they are planning to file a complaint against Disneyland Paris.
Back in 2010, two chefs who worked at the theme park took their own lives. A Disney investigation found no evidence of work harassment after the first suicide, and it was said the second was not work-related.
The latest news comes as Disneyland visitor figures for 2013 were found to be a million less than in 2012.
And, just last month, a five-year-old was left in a critical condition after falling from a ride at Disneyland Paris.
The boy was on the Pirates of the Caribbean ride with his father when he fell out of the boat towards the end of the ride.
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