(BBC) The ambulance service warned a year before the Manchester Arena bombing that lives would be lost if specialist medical help was delayed during a terror attack, an inquiry heard.
It took more than two hours to deploy triage teams in a 2016 terror training exercise, a public inquiry was told.
Retired Greater Manchester Police (GMP) Inspector June Roby said lessons should have been learned.
One paramedic was at the scene in the first 40 minutes after the 2017 bomb.
Twenty-two people were killed and hundreds more injured when Salman Abedi detonated a bomb at the end of an Ariana Grande concert on 22 May 2017.
