Gun violence surges in major U.S. cities, 13 killed in Chicago over July Fourth weekend

Chicago officials report a deadly Fourth of July weekend, with a least 13 people killed, including a 7-year-old girl, the latest in a wave of violent crime in the city since the Memorial Day weekend.

The child was reportedly killed at a family party. A teenage boy was also among those killed. The 14-year-old died in a shooting just before midnight Saturday, when four males reportedly opened fire on a large street gathering, police said.

Police reportedly had planned to put an additional 1,200 officers on the streets this past weekend, in response to the crime wave.

In New York, the city reportedly had 176 murders in the first six months of the year, a 23% increase compared to the same period last year.