LONDON (March 3, 2013)--Queen Elizabeth II, 86, was in the hospital Sunday after suffering from what appeared to be a stomach infection, Buckingham Palace said.

The palace said the British monarch experienced symptoms of gastroenteritis.

Her upcoming trip to Rome would be cancelled, the palace said.

In a statement released Sunday, the palace said that all official engagements for the coming week would be postponed or canceled "as a precaution."