(CNN)At least 10 mass shootings across the US this weekend left eight people dead and dozens injured, disrupting gatherings including an Easter celebration and a massive house party.
The shootings add to the year's increasing toll of mass shootings in the United States, which stands at 144, according to the Gun Violence Archive. The archive and CNN define a mass shooting as an incident in which four or more people are shot, not including the shooter.
The violent weekend follows a horrifying attack Tuesday on a Brooklyn subway train that left almost 30 people injured, including 10 shot.
Easy access to guns is considered by experts to be a root cause of gun violence, and open-carry states lower the barrier for people to own and carry guns in public. But the spike in violence across America since summer 2020 has been general, across cities and states with lax and strict gun laws, with progressive and conservative prosecutors, and with Republican and Democratic mayors and governors.
From parties to a shopping mall, here's a look at the mass shootings this weekend that spanned eight states.
A late-night Friday incident in Stockton left two men dead and two others wounded, according to the Stockton Police Department.
When police arrived around 11:20 p.m. PT, they found four men shot, Stockton police said in an online statement. Two of the men, ages 26 and 27, were pronounced dead, and two other victims were taken to a hospital, police said.
No suspect or motive was immediately identified in the attack, the police statement said.
Police are investigating a Sunday night shooting that left one man dead and three others injured, said Miami-Dade Police Department Detective Alvaro Zabaleta.
Officers responded to a shooting at a residence in the 5000 block of South River Drive just before 10 p.m. ET, Zabaleta said Monday.
"As the officers arrived, they discovered four people shot," he said. "An adult male was shot, an adult female was grazed and two juveniles were shot in the lower extremities."
Police did not disclose the ages of the people injured.
Investigators are working "to determine who the shooter may have been and if this incident is domestic related," Zabaleta said.
In Baltimore, a Saturday evening shooting left one victim dead and three others injured, police said.
When police responded around 5:30 p.m. ET to a report of a shooting in the 5300 block of Maple Avenue, they found two men with gunshot wounds, police said.
Medics pronounced a 29-year-old dead at the scene, while the other man was taken to the hospital with injuries that were not life-threatening.
Investigators later learned two other men at a hospital had been victims in the Maple Avenue shooting, police said.
A shooting late Saturday at a house party in North Las Vegas left four people injured, including two minors, police said in a news release.
One woman was shot in her lower extremities and was in serious condition, and other victims were in stable condition Sunday afternoon, police said.
The shooting was the result of an argument and no one was in custody as of Sunday evening, authorities added.
One person was killed and four others wounded early Saturday morning in downtown Syracuse as gunfire erupted in part of the nightlife district, CNN affiliate WSTM reported.
The shooting happened after a verbal argument, police said, according to WSTM. In addition to the person killed, one victim was taken to the hospital in critical condition, the affiliate reports.
Alexandra Campbell was finishing her shift at a nearby restaurant when the shooting broke out. After hiding behind her workstation, she came out and saw the aftermath, she told WSTM.
"I just see blood everywhere, a lot of blood," Campbell said. "I didn't really know what to do. I was crying."
A male was found dead and three boys wounded by gunfire Sunday night in Portland's Centennial Neighborhood, police said in a news release.
Officers responding at 8:43 p.m. PT to the 500 block of Southeast 162nd Avenue found a person dead and three boys shot, one with life-threatening injuries, it said. They were taken to hospitals.
Two mass shootings Sunday left two dead and at least 17 injured.
A party at a short-term rental property in Pittsburgh ended abruptly early Sunday when as many as 90 shots were fired inside and outside the house, leaving two 17-year-old boys dead and more than a dozen other people injured, officials said Sunday.
Investigators say as many as 200 people were at the gathering, many of them underage. When the shooting broke out, some escaped by jumping out windows, resulting in injuries including cuts and broken bones, the city said in a news release.
Eight people had nonfatal gunshot wounds, and five others were hurt fleeing, Chief Scott Schubert said. Police said some people jumped out windows while trying to get away from the gunfire.
A massive search effort is underway for what police believe are "multiple shooters," they said.
Video posted to Facebook Live shows the terrifying moments people try to escape.
In the video, a male partygoer screams, "He got the gun! Get the f**k out," as he tries to warn his friends of what's happening. "He's about to shoot!" he also screams.
Panic ensues and several teenagers are seen crammed together and rushing toward an exit before gunshots are heard in the video.
The video then shows frantic teens ducking and tripping over each other as they rush out the door.
Later in the day, four men were shot in Philadelphia's Fairhill neighborhood, CNN affiliate KYW reports.
Victims, ranging from 21 to 53, were shot around 6 p.m. ET and are in stable condition, police said, the station reported.
Shootings at an Easter celebration and a shopping mall left at least 23 people injured, including 18 who were shot.
Two men have been arrested in connection with a shooting Saturday at the Columbiana Centre mall in Columbia that left at least nine people with gunshot wounds and five others injured, police have said. An arrest warrant has been issued for a third suspect, according to Police Chief "Skip" Holbrook.
Around 2 p.m. ET, armed people clashed inside the mall, police said. Investigators believe those involved in the shooting knew each other, Holbrook said Saturday.
"You had three people that brought guns into a crowded mall that were in dispute with one another and chose to pull their guns and nine people were shot," he said Monday.
The victims' ages range from 15 to 73, police said. One gunshot victim remains in intensive care, the chief added.
Another shooting Sunday morning in the town of Furman at a lounge hosting an Easter party left at least nine people injured, according to the South Carolina Law Enforcement Division.
Chaos followed the gunfire at Cara's Lounge, witnesses said, and some people jumped into ditches to avoid being hit, CNN affiliate WTOC reported.
"It was scary. We were just trying to get to safety," Jasasi Williams told WTOC. "We didn't know where the shots were coming from. ... Everyone was running and screaming."
Furman is about 50 miles north of Savannah, Georgia.