Dozens of journalists covering anti-racism protests that have rocked the US have reported being targeted by security forces using tear gas, rubber bullets and pepper spray. In many cases, they said it was despite showing clear press credentials. The arrest of a CNN news crew live on air on Friday in Minneapolis, where unarmed black man George Floyd died at the hands of police, first drew global attention to how law enforcement authorities in the city were treating reporters. On Tuesday, Australian Prime Minister Scott Morrison asked his embassy in Washington to investigate the use of force by police against an Australian news crew as officers dispersed protesters there. It comes after dozens of attacks on journalists and media crews across the country over the weekend were reported on social media. In total the US Press Freedom Tracker, a non-profit project, says it is investigating more than 100 press freedom violations" at protests. About 90 cases involve attacks. On Saturday night, two members of a TV crew from Reuters news agency were shot at with rubber bullets while police dispersed protesters in Minneapolis. In Washington DC, near the White House, a riot police officer charged his shield at a BBC cameraman on Sunday evening. On Friday night, Linda Tirado, a freelance photojournalist and activist, was struck in her left eye by a projectile that appeared to come from the direction of police in Minneapolis. She has been permanently blinded in that eye.