William Hague has told ITV News that under the current circumstances, the Government is "not planning, contemplating, or having meetings about Britain taking military action in Iraq."
He said that moves are being made to try to persuade Iraqi leaders to work together, provide aid and expertise, but "none of that means British soldiers going to Iraq".
More top news
The so-called Islamic State group has released a video, which purportedly features a British boy, appearing to execute a prisoner.
The two-year-old's condition is said to be "life-threatening" after he was struck by a car while out walking with his grandfather in London.
Lord O'Donnell, who used to head up the Civil Service, says he believes Britain may not actually exit the European Union.