ITV News has learned that a man convicted over the gas deaths of two children in Corfu has been working at another hotel used by Thomas Cook.
George Chrysikopoulos was found guilty of negligent manslaughter by a Greek court and sentenced to seven years in prison.
Following ITV News' investigation, Chrysikopoulos was sacked by the hotel yesterday at the insistence of Thomas Cook.
The former managing director of Thomas Cook has criticised the company's handling of the deaths of two children in a hotel in Corfu.
John McEwan said the company "should have spent a great deal more time thinking about how they engage with the family" of Bobby and Christi Shepherd who were killed by carbon monoxide poisoning while on holiday in Corfu in 2006.
"Their first priority should have always have been the health and wealth of the family through the circumstances they were going through," he told ITV News.
The boss of Thomas Cook said he is "deeply sorry" over the deaths of two British children killed by carbon monoxide poisoning in Corfu.
Kristine Williams, 61, claims she was electrocuted and 'thrown across the room' after accidentally touching the wires at a hotel in Cuba.