Average interest rates for 30-year fixed-rate mortgages in the United States have surged, marking the largest weekly increase in nearly four years. The situation is further complicated by a lack of available servicers willing to take on new mortgages. This dramatic rise in rates is impacting the US housing market, creating challenges for potential homebuyers. According to reports from New York, the increase reflects broader economic trends and shifts in financial markets. Experts suggest that the escalating rates may cool down the previously heated housing demand across the United States. This is a developing story with potential ramifications for the US economy and housing affordability. The report originates from Yonhap News Agency coverage in New York.