Excerpts from the ChicagoSunTimes.com:

An offender was in custody in connection with the shots fired and a weapon was recovered.

Police Supt. Eddie Johnson identified the officers as Eduardo Marmolejo, 37, and Conrad Gary, 31. Marmolejo was on the force for 2 1/2 years and Gary was had been an officer for 18 months.

In an email to the police department, Johnson said he was ” devastated to share some tragic news. Tonight, Officer Eduardo Marmolejo and Officer Conrad Gar were killed in the line of duty while responding to a call for service on the railroad tracks. Both officers were fatally struck by a passing train. I am deeply saddened by this tragic event and ask that everyone keep their family and co-workers in their thoughts and prayers.”

The Calumet District (5th), where the two officers worked, has had an especially rough year. Two Calumet officers have taken their own lives in the parking lot of the station, which is in Pullman, and another died while working in the station.

Excerpts from abc7chicago.com:

Two Chicago police officers were struck and killed by a South Shore Line train Monday evening on Chicago’s South Side. Shortly after 6 p.m., the officers responded to a call of shots fired near the tracks near 103rd Street and Cottage Grove. While they were investigating, they were struck by the train. The officers were pronounced dead at the scene. and have not yet been identified.

CPD Spokesman Anthony Guglielmi said the two officers were newly-appointed. In a tweet, Guglielmi said a weapon was recovered at the scene and a person of interest was being questioned at the site where the officers died.

About 6:20 p.m., Metra officials were informed that the people had been struck by eastbound South Shore Line train 119 near 103rd Street.  As a result, all power was shut down on the Metra Electric District Line from 69th Street to 115th Street.

South Shore Line trains are stopped in both directions and are facing extensive delays. At about 9 p.m., passengers from eastbound Train 119 were bussed to Hegewisch Station, where they could board a train to their final destinations.