“The Islamic State has claimed responsibility for the bombing on a London tube train this morning. The group’s Amaq News Agency first released a short statement claiming that a ‘detachment’ carried out the attack. The Islamic State then released a longer statement saying that ‘soldiers of the caliphate’ had placed ‘several’ bombs and exploded one of them.”
Source: Islamic State claims its ‘soldiers’ carried out London tube bombing | FDD’s Long War Journal