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 local MP for the parents whose two children who were killed while on holiday in Corfu has rounded on the company for not addressing safety issues.
Mary Creagh, a Labour leadership contender, who was with the family during the inquest this week, said Neil Shepherd and Sharon Wood were upset as the correspondence from Thomas Cook stopped short of apologising.
"It does not address the central issue that their safety management procedures and policies failed, and for that they have not apologised," Ms Creagh said.
"That is what the inquest in Wakefield found this week, and they have singularly failed to apologise for that."
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.