The Metropolitan Police have defended the decision to drop an inquiry into one of the London Bridge attackers.
At this point, two of the attackers in the London Bridge incident have been named - Rachid Redouane, who is believed to be Moroccan-Libyan, and Khuram Butt.
It has emerged Butt, who was born in Pakistan, had been the subject of a previous injury.
In 2015 he was investigated by the authorities, but at that point in time, no evidence of an attack being planned was found.
As a result, he was "prioritised in the lower echelons of investigative work", according to assistant commissioner Mark Rowley.
This admission means the perpetrators behind all three recent UK terror attacks had been flagged up at some point to the authorities.
The assault on London Bridge and Borough Market left seven people dead and dozens injured.