Three people died and seven more were injured after a shooting at a wood-processing factory in Switzerland, police said.
It is believed the gunman is among the three dead.
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With temperatures peaking at 29C today, it is the hottest April day for nearly 70 years.
Russian trolls are behind a disinformation campaign about chemical weapons attacks in Syria and Salisbury, a government source has said.
Decontamination work is to begin at nine sites across the city.