The Trade Union Congress of Nigeria (TUC) has called on the Federal Government to investigate the mass retrenchments of workers by some large firms in the country, including Guinness, Cadbury, 7-Up and Coca-Cola.

The TUC President, Bobbio Kaigama, who made the appeal at a news briefing, said other companies were Nigeria Breweries, Nestle Nigeria Plc, as well as some construction, oil, and telecommunication companies.