Dr Khor Chin Kee, chief executive officer of Parkway Shenton, said: "We are deeply sorry for the family's loss. Since the incident, we have been providing support and assistance to the family."

Parkway Shenton was handling the transfer and is part of the healthcare chain with Mount Elizabeth Novena Hospital and Gleneagles Hospital.

Dr Khor added that the healthcare chain is taking a very serious view of the incident and has since reviewed and revised its protocols that address the relevant issues.

"We will also see how to implement the State Coroner's recommendation to better coordinate with the sending hospital - in this case, Tan Tock Seng Hospital - for transfer cases," he said.

Tan Tock Seng Hospital could not be reached for comment.