Turkey suicide bomb 'like ball of fire'

Eyewitnesses have described the suicide bomb attack that killed 32 young activists in Turkey as "like a ball of fire".

"There was silence" after the explosion, a man, who was taking photographs at the news conference, recalled.

"We had lost the ability to hear, we didn't really know what was going on," he said.

Another eyewitness said it sounded like a roar.