A Syrian plane has reportedly been shot down while flying near the border with Turkey, an area where rebels have been fighting the forces of President Assad.
Turkey's NTV channel has quoted government officials saying the jet was shot down because it had violated Turkey's air space.
More top news
The Queen was in reflective mood this Christmas, choosing reconciliation as her theme and taking a quite direct personal approach.
Quickly turning cold this evening with a widespread frost developing under clear skies, some fog patches too.
The Queen says she is "deeply touched" by the "selflessness" of medical staff fighting the Ebola outbreak in her annual Christmas speech.