We're barely six weeks into 2018 and there have already been 19 school shootings across the United States.
Since 2013, there have been nearly 300 school shootings in the U.S. — that's an average of about one a week, according to gun control advocacy organization Everytown For Gun Safety.
Not all shootings on school campuses have resulted in death or are related to an active shooter situation.
Here is a list of the school shootings that have happened in 2018:
Feb. 14: Marjory Stoneman Douglas High School in Parkland, Florida
Mass shooting resulting in numerous casualties and injuries. Story developing.
Feb. 8: The Metropolitan High School in New York, New York
A 17-year-old student was arrested after firing a gun on the Bronx school campus.
Feb 5: Harmony Learning Center in Maplewood, Minnesota
A third grade student discharged a police officer's holstered gun. No injuries were reported.
Feb 5: Oxon Hill High School in Oxon Hill, Maryland
A 17-year-old student was shot in the school parking lot after being lured by an ex-girlfriend as a set-up for a robbery.
Feb 1: Salvador B. Castro Middle School in Los Angeles, California
A 12-year-old girl accidentally fired a gun she was carrying in her backpack, injuring five children. The girl claimed she didn't know it was loaded.
Jan 31: Lincoln High School in Philadelphia, Pennsylvania
A 32-year-old was shot and killed outside of the school.
Jan 26: Dearborn High School in Dearborn, Michigan
Shots were fired at the parking lot of the school during a basketball game but no one was injured.
Jan 25: Murphy High School in Mobile, Alabama
A 16-year-old boy shot a gun in the air. No injuries were reported. He has since been arrested and charged as an adult.
Jan. 23: Marshall County High School in Benton, Kentucky
A 16-year-old boy opened fired on campus, killing two and injuring 18 others.
Jan. 22: Italy High School in Italy, Texas
A 16-year-old boy shot and injured a 15-year-old girl with a semi-automatic handgun in the school cafeteria. He was taken into custody after the incident.
Jan. 22: NET Charter High School in New Orleans, Louisiana
An unidentified person pulled up in a truck and shot into a group of students standing outside the school during lunch time. One teenager was sent to the hospital with a superficial injury.
Jan. 20: Wake Forest University in Winston-Salem, North Carolina
A North Carolina football player from Winston-Salem State University was shot to death while at an event at Wake Forest University.
Jan. 15: Wiley College in Marshall, Texas
Police believe two suspects in a car exchanged gunfire with a person in a dormitory parking lot. No injuries were reported, but a bullet entered a dorm room during the incident.
Jan. 10: Grayson College in Denison, Texas
A criminal justice student fired a bullet through a wall after mistaking the firearm for training gun. No one was injured.
Jan. 10: California State University, San Bernardino in San Bernardino
A gun was fired on campus, however, no injuries reported.
Jan. 9: Coronado Elementary School in Sierra Vista, Arizona
A 14-year-old boy was found dead from a self-inflicted gunshot wound in the school bathroom.
Jan. 6: School bus in Forest City, Iowa
A 32-year-old man was arrested after firing a pellet gun into a school bus. No children were injured, but a window on the bus was shattered.
Jan. 4: New Start High School in Burien, Washington
Shots were fired from outside the school into the school's administration office, but no one was injured.
Jan. 3: East Olive Elementary School in St. John's Michigan
A 31-year-old man shot and killed himself in the school parking lot after hours of negotiation with police. The man called authorities, said he was suicidal and had a handgun.