Queen under medical supervision at Balmoral

The Queen is under medical supervision at Balmoral after doctors became concerned for her health, Buckingham Palace has said.

All the Queen's children are either at, or are travelling to, her Scottish estate near Aberdeen.

"Following further evaluation this morning, the Queen's doctors are concerned for Her Majesty's health and have recommended she remain under medical supervision," a statement said.

The Queen is comfortable, it added.

It is very unusual for Buckingham Palace to put out a statement like this - it is usually unwilling to provide a commentary on...