Norwich City's new manager Neil Adams said the team was "very disappointed" after its 4-0 defeat to Manchester United
The match at Old Trafford was Ryan Gigg's first since he became interim manager of United following David Moyes' exit from the club.
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Among those murdered was Keith Palmer, an unarmed constable who "did his job and never wanted any fuss."
Top temperature 14 Celsius (57 F).
The Prime Minister will say Moscow's brazen flouting of international law represents a threat to the basis of democracy across Europe.