Water, food tested at Egypt hotel, where British couple died

Egyptian investigators are testing food and water at a Sinai hotel following the unexpected deaths of a British couple on Tuesday, Thomas Cook has announced.

Food, water and air conditioning systems are being tested by Egyptian experts at the Steinburger Aqua Magic Hotel in Hurghada, following the demise of John and Susan Cooper in a matter of hours, under mysterious circumstances.

Thomas Cook CEO Peter Fankhauser pledged to get to the bottom of what happened to the Coopers, who died at the Steigenberger Aqua Magic Hotel in the Egyptian Red Sea resort of Hurghada this week.

Their daughter said the couple were in "perfect health" hours before they died.

"They had no illness, no stomach upset, no vomiting, no illness whatsoever - they were in perfect health when they went to bed," the couple's daughter Kelly Ormerod told Sky News.

"I believe something suspicious has gone on... something has happened in that room and caused them to be taken away from us."

This seems to go against the official explanation that the Lancashire couple passed away from natural causes.

A security official claimed John died "of a heart attack", while Susan from a "halt of blood circulation and her respiratory functions".

Egyptian investigators have already ruled out death by exposure to toxic fumes or gas, which is an opinion the CEO seems to share.

Fankhauser told Sky News on Sunday there was no evidence of carbon monoxide poisoning and that recent  tests on food and water could take ten days to complete.

Thomas Cook has already evacuated 300 guests from the resort after it emerged that 13 customers had food poisoning.

Some claimed they were ill due to "undercooked food" and "hygiene", while a lawyer has said 20 holidaymakers are preparing to take legal action against the hotel.