Margaret Hodge, the chair of the Public Accounts Committee, told ITV News: "I understand why they are tempted to go down this route but they are wrong. They should not be engaging in aggressive tax avoidance.
"I have to say the people who benefit from this are the accountants who have set up this system and they are taking money out of the NHS, out of direct services...and pocketing it and that is tax payers' money."
Laura Kuenssberg: NHS Trusts in England accused of avoiding tax
More top news
The encounter in Havana airport is the first between the heads of the two branches of Christianity since a schism nearly a thousand years.
The LGA wants chains with more than 20 outlets to display calorie counts as part of a plan to tackle childhood obesity.
Run by the NSPCC the helpline allows employees in any sector to raise concerns anonymously.