Nama chiefs will be hauled before the Dáil’s public spending watchdog on Thursday to address growing concerns about a controversial cut-price deal — linked to a secret €9.8m off-shore account scandal — that saw properties sold for €4bn less than their initial value.

Independent TD Mick Wallace’s allegations in the Dáil last Thursday set a controversy alight which had been burning for months in Belfast.

At least six workmen were injured in Belfast today when a building under construction collapsed.