A growing trend called “teen takeovers” where scores of young people converge on small areas have raised safety concerns in cities across the United States, and prompted officials to develop strategies to control the trend.

As federal agents ramp up an immigration crackdown in the Chicago area, an increasing number of elected officials in the Democratic stronghold are getting caught in the crosshairs.

Activists, residents and elected leaders say increasingly combative tactics used by federal immigration agents are sparking violence and fueling neighborhood tensions in the nation’s third-largest city.

Federal officials have reported the arrests of 13 people protesting near an immigration facility outside Chicago.

With Earth breaking average heat records, cities are sure to be giving a fresh look at their readiness plans for temperatures that can kill.