Record-breaking cold follows snow in U.S. Midwest

A worker arrives at the Metra Western Avenue Yard to inspect and work on the rail cars, Tuesday, Jan. 29, 2019, in Chicago. Forecasters warn that the frigid weather Tuesday will get worse and could be life-threatening. The extreme cold and record-breaking temperatures are crawling into a swath of states spanning from North Dakota to Missouri and into Ohio after a powerful snowstorm pounded the region earlier this week. [Photo: AP]