ATF agent shot in Chicago, in critical condition

CHICAGO - The Chicago Tribune reports an ATF agent was shot and critically injured early Friday while working undercover in a joint mission with Chicago police task force officers on the South Side, according to police.The shooting happened around 3:15 a.m. in the 4500 block of South Hermitage Avenue in the Back of the Yards neighborhood.Emergency personnel rushed the agent to the hospital in critical condition.No one is in custody.This is a developing story stay with 10TV and 10TV.com for updat