More concrete falls at Union Station, causing Metra delays as Amtrak makes emergency repairs

Metra is reporting minor delays on three of its lines as emergency work is taking place at Union Station, because concrete fell onto the tracks, officials said.

Union Station south concourse tracks No. 2, 4, and 6 will be out of service, the Metra Southwest line tweeted about 6:45 a.m.

Metra spokesman...