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 boss of Thomas Cook has said he is "grateful" the family of two young children killed by carbon monoxide poisoning in Corfu agreed to meet him.
Christi and Bobby Shepherd died at the Louis Corcyra Beach Hotel on the Greek island in 2006 while on a Thomas Cook holiday.
Peter Fankhauser, chief executive of the travel firm, has admitted the company failed in its handling of the tragedy and pledged to help the children's parents move on with their lives.
He made the comment as he arrived for a private meeting with the family in central London today.
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.