At least 10 killed in 4 shooting incidents in the United States

At least 10 people were killed and more than 24 injured in four shootings in the United States this weekend, the latest in a string of shootings that have left members of Congress on alert to the crisis.

The shooting followed a series of mass killings that sparked renewed calls for reform of the country's gun ownership laws.

Police Chief Celeste Murphy said that the outbreak of violence in Chattanooga, Tennessee, on Sunday, wounded 14 people, including two dead, while another person was killed and two others were injured after they were hit by cars fleeing the scene.

He added that "several" of the victims were in critical condition.

The accident occurred before dawn near a nightclub.

In Philadelphia, on Saturday, two men and a woman were killed when several people shot into a crowd on a busy street in an area famous for its nightlife.

Philadelphia Police Commissioner Danielle Outlaw said one of the victims had a fight with another man, which may have been the cause of the shooting.

She told reporters that the other two people were "innocent bystanders."

MLive.com and WEYI TV reported, citing police, that three people were killed and two others wounded in Sunday's shooting in Saginaw, Michigan.

Police said in a statement that five teenagers and a 12-year-old boy were among seven people injured in the shooting at a graduation party Saturday that killed an adult in Clarenden County, South Carolina.

These incidents also come at a time when members of the US Senate find themselves under pressure to pass legislation that helps put an end to these operations.

Democratic Senator Chris Murphy has been working with a bipartisan group of senators on reform measures that Republicans routinely reject.

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