Stocks set for lower start ahead of jobs data

U.S. stocks are set for a lower open, continuing Thursday's sell-off after weekly jobless claims and monthly manufacturing data came in far worse than expected, causing U.S. indices to slump 2-3 percent. Investors await nervously to a key monthly employment report this morning after a week of several generally negative economic releases.

More here: Before the bell: Futures decline ahead of payrolls report