Police have released this image of Constable Philippa Reynolds who was killed in a road collision involving a stolen car in Londonderry, Northern Ireland.
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The attack on a college in Garissa, Kenya, comes a day after President Uhuru Kenyatta declared: ''Kenya is safe".
The pre-trial hearing for a British banker, accused of murdering two women in Hong Kong last November, was adjourned for five weeks.
Conservationists say one of the UK's most threatened butterflies has recorded its best year for a decade following 2014's warm spring.