A 10-year-old girl has died aboard an Air Canada transatlantic flight to London, England.

Air Canada says flight 868 departed from Pearson International Airport at 8:50 a.m. Saturday morning but had to be diverted to Shannon, Ireland due to a medical emergency onboard the Boeing 787.

According to several media reports out of Ireland, the pilot reported a child was in cardiac arrest.

Air Canada confirms that two medical professionals, a doctor and a nurse who were part of the 230 passengers aboard the flight, assisted the young child.

“Emergency response crews met the aircraft and very regrettably the customer, a ten-year-old child, was pronounced dead by local medical authorities,” the airline said in a brief statement to CityNews.

“We are deeply saddened by this situation and we are doing all we can to assist the family in these tragic circumstances.”

Neither Air Canada nor the Canadian government could immediately confirm the girl’s nationality.

Media reports said the child was travelling with three adult siblings.

Air Canada says the flight ultimately continued on to its final destination, London Heathrow.