South African police were "very surprised" by the suggestion Reeva Steenkamp may have been mistaken for a burglar before she was shot dead at the home of Oscar Pistorius, a spokeswoman has said.
Brigadier Denise Beukes told reporters near the scene: "These allegations did not come from us."
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An unidentified male suspect is alleged to have wounded at least five people, two seriously, in an attack in the city of Schaffhausen.
Donald Trump's son-in-law has denied any improper conduct during four contacts with Russians during and after the presidential election.
Police are appealing for witnesses after Sunday night's incident, which is not being treated as terror-related.