On 4 June, the Home Secretary Amber Rudd said, "We are confident about the fact that they were radical Islamic terrorists, the way they were inspired, and we need to find out more about where this radicalisation came from." On 5 June, two of the attackers were identified as Khuram Shazad Butt and Rachid Redouane. The third of the three attackers, Youssef Zaghba was identified the following day.