Two helicopters crashed near Berlin's Olympic Stadium during a federal police exercise, German authorities said. One pilot was reported to have died in the accident and several others were injured. Police have launched an investigation.
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Labour leadership candidate says Britain playing its role in the migrant crisis would help Cameron secure the promised reforms in Brussels.
Ten people have been taken to hospital and another two treated for injuries after a bus crashed into a tree in east London.
Cloudy skies for most as the Bank Holiday weekend begins - with brighter breaks through the south-east, the Midlands and East Anglia.