Unite calls special meeting over alleged overspend on £50m building project

Union denies wrongdoing after contracts for Birmingham complex given to firms investigated for bribery

Unite, Labour's most generous backer, is organising a special meeting of its ruling body to discuss an alleged overspend on a multimillion pound construction project funded by the union.

The executive council will convene on Friday 29 January to discuss a seven-storey hotel and national conference centre in Birmingham funded by the union.