Fierce weather has swept through the United States' southwest states of Texas and New Mexico, causing at least four deaths in accidents, local media reported Saturday. Freezing rain and cold temperature have influenced Texas residents' travel and should be blamed for causing the traffic accidents since late Friday, according to the website of the local Engish daily "The Houston Chronicile." In Vega, some 48 km west of northern Texas city Amarillo, a fatal traffic accident involving nine tractor-trailer rigs and two passenger vehicles killed three people and injured several others when it occurred shortly before midnight Friday. In New Mexico, some parts of the state have been blanketed with snow and freezing rain, which caused the death of a 4-year-old girl in a rollover accident Saturday in the eastern part of the state.