A makeshift memorial is seen near the crime scene two days after five police officers were killed in Dallas, Texas, U.S., July 9, 2016
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Dallas shooting: 'We're wounded by these deaths' says Biden

US Vice-President Joe Biden says all of the US is "wounded" by the deaths of police in Dallas, and of the "too many black lives lost".

Five police officers were killed and another seven injured by gunman Micah Johnson.

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