FBI hunt 'hate crime' shooter in Tulsa
The FBI has joined an investigation into a series of shootings in the US city of Tulsa, that police say may have been hate crimes.
Three black men were killed and two others critically wounded early on Friday, all within a 5km radius.
The police said they were searching for a white man driving a white pick-up truck, who was seen in the area of three of the shootings.
Zoe Conway reports.