Former New York City mayor Rudy Giuliani has been criticised after he said the term "black lives matter" is ''inherently racist".

Police today shot dead the prime suspect in the murder of four Seattle officers.

Authorities in the US state of Washington believe the man sought for the killings of four police officers is still alive and has been aided by a network of friends and family, a police spokesman said.

The main suspect in the murders of four US police officers shot as they sat in a coffee shop was gunned down as he hid in a house today.