LAS VEGAS (AP) — The Las Vegas police chief said Tuesday that legal observers who were arrested at a weekend protest on the Las Vegas Strip were not neutral witnesses but were "antagonizing" and obstructing officers.

Clark County Sheriff Joe Lombardo defended his officers at a news conference but acknowledged an ongoing investigation into police actions over the weekend and in more than 80 protests in Las Vegas over the death of George Floyd, a black man who died in Minneapolis after a white officer pressed his knee into his neck for several minutes.

Gov. Steve Sisolak has called for an investigation into the arrest of at least six attorneys and law students who were documenting the protest.