(BBC) Staff were not expected to check an area at Manchester Arena where Salman Abedi hid for nearly an hour before the venue bombing, a security boss said.
Venue operator SMG and security provider Showsec had opposing views on whose responsibility it was to patrol an upstairs area of the City Room, an inquiry into the blast heard.
Twenty-two people died in May 2017 with hundreds more injured.
Abedi remained out of sight from CCTV before he struck, the inquiry was told.
Bosses at SMG thought Showsec staff would physically walk up the stairs — to the location where Abedi was hiding — before concertgoers were due to leave.
