(BBC) Three officers criticised during the Manchester Arena inquiry will not be investigated by the police watchdog.
British Transport Police (BTP) PCs Jessica Bullough, Mark Renshaw and PCSO Lewis Brown were on duty during the 2017 atrocity which killed 22 people.
They were among five officers referred to the Independent Office for Police Conduct (IOPC) after the force was criticised in a public inquiry report.
It concluded an internal force inquiry was appropriate.
Relatives of some victims want an independent investigation to take place.
The five officers referred to the watchdog were assigned to the arena at the time of the blast, which also injured hundreds as they left an Ariana Grande concert.
