WASHINGTON - Construction of new homes plunged last month to the lowest level on records going back nearly 50 years as U.S. builders slashed production while Wall Street nosedived.

Embattled homebuilders, who enjoyed a five-year boom, are now building new homes and apartments at a record-low pace, according to government data released Wednesday. New building permits, a barometer of future activity, also plummeted to the lowest pace on record.