US Republican presidential candidate Donald Trump says initial evidence suggests the shooting of a black man by police in Wisconsin was justified

The killing of Sylville Smith, which took place in a predominantly African-American part of Milwaukee on Saturday, led to several days of protests.
"We have to obey the laws or we don't have a country," Mr Trump told Fox News after visiting police in the city.
A string of fatal police shootings have sparked demonstrations across the US.
Protesters say the police are too ready to use lethal force against African Americans.
In the latest incident on Saturday, 23-year-old Mr Smith was stopped by police and then fled.
Police said he was shot because he was carrying an illegal handgun and had refused to drop it.
"The gun was pointed at his [a police officer's] head supposedly ready to be fired," said Mr Trump, the Republican presidential candidate.
"Who can have a problem with that? That's what the narrative is. Maybe it's not true. If it is true, people shouldn't be rioting."
Mr Trump, a businessman who stunned the political world by winning the Republican primary contests, met Sheriff David Clarke in a private meeting on Tuesday.
Mr Clarke has put the state's National Guard on standby but it has not been used.
New York hotel developer Mr Trump has been vocal in his support for the police throughout his election campaign.
He trails Democrat Hillary Clinton in the polls, ahead of November's presidential election, after a series of controversial remarks.
The Republican is due to speak later at a rally in the city.