At least 10 killed in shooting in Boulder, Colorado 2:38
(CNN) -
The mass shooting at a supermarket in Boulder, Colorado, on Monday took place less than a week after eight people were killed in a series of spa attacks in Atlanta.
The two incidents are likely to stimulate discussion about gun control legislation in the United States, where firearm deaths are tragically common.
They are also among at least seven mass shootings in the past week in the United States, including three incidents on Saturday alone.
CNN defines a mass shooting as a shooting incident that results in four or more casualties (killed or wounded) excluding the shooter or shooters.
The first officer to respond to the mass shooting in Boulder, Colorado, was killed.
Leaves seven children
Colorado shooting kills several people 7:25
These are the mass shootings in recent days.
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Atlanta - Tuesday March 16
Eight people, including six Asian women, were killed when a white attacker broke into three spas, police said.
Stockton, California - Wednesday, March 17
Five people who were preparing a vigil in Stockton, in California's Central Valley, were shot in a shooting from a vehicle, the San Joaquin Sheriff's Department said.
None had life-threatening injuries.
Gresham, Oregon - Thursday March 18
Four victims were taken to hospital after a shooting in the city east of Portland, police said in an initial report.
Houston, Texas - Saturday March 20
Five people were shot after a disturbance inside a club, according to police.
One was in critical condition after being shot in the neck, the rest were in stable condition, according to CNN affiliate KPRC.
Here's what we know about some of the victims of the Atlanta-area spa shootings
Husband of Atlanta Massacre Victim Arrested 0:56
Dallas, Texas - Saturday, March 20
Eight people were shot by an unknown attacker.
One of the victims died, according to police.
Philadelphia - Saturday March 20
One person was killed and five others injured during a shooting at an illegal party, CNN affiliate KYW reported.
"There were at least 150 people there who fled and believed they had to flee for their lives," said Philadelphia Police Commissioner Danielle Outlaw.
Boulder, Colorado - Monday, March 22
Ten people, including a Boulder Police officer, were killed in a shooting at the King Soopers supermarket, according to police.
It is not clear how this number of mass shootings compares to an average week in the US.
Although some official data on gun violence is available, the US federal government does not have a centralized system or database to track firearm incidents and mass shootings across the country.
According to the Centers for Disease Control and Prevention, which tracks some gun violence data, nearly 40,000 people died in firearm-related incidents in 2019.
Mass shootings
