Syrian state television has quoted a military official saying the plane shot down by Turkey was pursuing rebel fighters within Syria's own territory.
The Turkish Prime Minister has said the jet was shot down because it had violated Turkish air space.
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The Sunday Times alleges a missile malfunctioned after launch during a routine test of the UK's nuclear deterrent last year.
Extending the MOT free period from three years to four would save motorists money and bring the UK into line with other European countries.