NASCAR drivers have shared their thoughts on the crash at the Nationwide race crash in Daytona, Florida.
Tony Stewart said: "I'm worried about the drivers and the fans. I could see all of it in my mirror and it didn't look good from where I was."
More top news
Employees at Netflix will be given "unlimited" time off during the first year after their child is born or adopted.
Scientists believe 400,000 cases of womb cancer have been avoided over the last 50 years by women taking the contraceptive pill.
Tony Blair could be made to stand trial for war crimes over the invasion of Iraq, Labour leadership frontrunner Jeremy Corbyn has said.