One of the bloodiest months in recent history continues in one of the US cities with the strictest gun control laws.

According to an NBC report,

Violence continued to strike the Chicago area this weekend with at least 18 people shot in a little more than 12 hours overnight, bringing the number of people shot since Friday to 40.

Four people, including an 11-year-old girl at a sleepover with friends, have been killed, police said.

Over 80 people were shot during the 4th of July weekend in Chicago.

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