Wall Street stock index futures point to falls
Concerns lingered over possible debt restructuring in Greece and contagion for other euro zone countries after Fitch downgraded Greece's debt ratings on Friday and S&P cut the credit outlook for Italy to negative on Saturday.
Adding to the worries, Spain's ruling Socialists, reeling from losses in local elections, now face a balancing act between voter anger over sky-high unemployment and investor demands for strict austerity measures.
Commodity prices were pressured by a broad rise in the dollar, as appetite for riskier assets eased across the board.
On the economic front, the Chicago Fed national activity index for April is due at 8:30 a.m. EDT.
Campbell Soup will release third-quarter results that are expected to show earnings per share (EPS) at $0.52 against $0.54 a year ago.
U.S. stocks fell on Friday on euro-zone debt worries, with retailers losing ground after a weak profit outlook from Gap.
U.S. retailer Wal-Mart Stores is setting up a team in London to drive expansion into Europe, The Independent on Sunday newspaper reported.
Foxconn Technology Co Ltd <2354.TW> on Sunday confirmed that a third person has died following a large explosion at a plant in southwestern China on Friday that local media have linked to production of Apple's iPad 2.
In Europe, the pan-European FTSEurofirst 300 index of top shares was down 1.5 percent at 1,118.66 points in early trade.
(Reporting by Harpreet Bhal; Editing by Will Waterman)