Parkdale High School Lockdown: Student Stabbed at Riverdale, Maryland School, Suspect Arrested as Police Investigate Campus Security Incident
RIVERDALE, MARYLAND — Parkdale High School in Prince George’s County, Maryland, was placed under a temporary lockdown following a student stabbing incident on December 18, 2025, prompting an emergency response from law enforcement and raising concerns about student safety.
As of October 20, 2026, no new lockdown at Parkdale High School has been independently confirmed through the reports reviewed. The widely reported incident occurred in December 2025, when a student was injured during an altercation on school grounds.
What Happened at Parkdale High School?
According to reports from local news outlets and Prince George’s County Public Schools, the December 18 incident occurred during the morning school hours, resulting in authorities implementing a precautionary lockdown.
The incident reportedly involved a student being stabbed with a pocket knife. Emergency responders attended the scene, while school administrators worked alongside police to secure the campus and account for students and staff.
The lockdown lasted approximately 40 minutes before officials determined that the immediate security concern had been contained.
Student Hospitalized, Suspect Taken Into Custody
Authorities confirmed that the injured student, aged 14, was transported to a hospital for medical treatment. Police subsequently described the student’s condition as critical but stable.
A fellow student was taken into custody in connection with the stabbing and subsequently faced attempted murder and related charges.
School officials described the incident as isolated and stated that there was no continuing threat to the wider school community following the security response.
School Safety Concerns Following Parkdale High School Lockdown
The incident brought renewed attention to security procedures at Parkdale High School, located at 6001 Good Luck Road in Riverdale.
Following the stabbing, Prince George’s County Public Schools indicated that officials were reviewing surveillance footage and investigating how a prohibited weapon entered the school building.
The incident also highlighted concerns surrounding prohibited weapons, student conflict prevention, emergency communication and the importance of effective security procedures.
Latest Parkdale High School Lockdown Updates
As of October 20, 2026, available verified reporting relates primarily to the December 18, 2025, stabbing and lockdown. No independently verified information establishes that a separate lockdown, shooting or stabbing occurred at the school today.
Parents and community members seeking current information are encouraged to monitor official announcements from Parkdale High School, Prince George’s County Public Schools and local law enforcement.
Further confirmed details concerning school security measures or developments in the earlier criminal case should be communicated through official channels.
The safety of students and staff remains a central concern for families following the previously reported Parkdale High School incident.