Bank repossessions rose again last month, driving overall U.S. foreclosure activity to a 19-month high on an annual basis, industry firm RealtyTrac said on Thursday. A total of 126,868 homes across the country were at some point in the foreclosure process in May, up 1 percent from April and up 16 percent from the same time last year, RealtyTrac said. Foreclosure activity includes foreclosure notices, scheduled auctions and bank repossessions.