An anti-ISIS group claims it's responsible for an attack on BBC websites that kept visitors from accessing the site for several hours.
And some sources at BBC believe it was a "distributed denial of service" attack.
"This is a common form of attack on major websites where attackers basically get together a whole bunch of computers and bombard that site with traffic," said BBC technology correspondent Rory Cellan-Jones.
In an email to the Daily Star, the group said the reason they chose BBC was "simply because we could at the time and it was worth the test."
This video includes images from Getty Images.