The investigating officer believes Oscar Pistorius may be a flight risk.
"We don't want another Dewani," the officer says, referring to Shrien Dewani - the British man accused by a South African court of arranging the murder of his wife on their honeymoon there.
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The brother of a taxi driver killed alongside the Afghan Taliban leader has asked police to investigate his sibling's death.
The girl's injuries are not thought to be life-threatening.
A dry night ahead, with any showers fading away.