CHICAGO (CBS) —  There were heavy delays on the Red and Purple lines after a shooting on Monday afternoon following a shooting at the Argyle CTA stop, according to Chicago police.

Police believe the two men who were injured were the intended targets of the shooting.

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Service was shut down for 30 minutes between Howard and Addison. The shooting happened around 4:15 p.m.

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Trains were running but are not stopping at the Argyle station, where the shooting occurred.

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Trains began stopping at Argyle again before 8 p.m. Monday night.