Of the 20 people on the deck when it collapsed, only eight were transported for treatment of their injuries — three to the R. Adams Cowley Shock Trauma Center in Baltimore and the remainder to the hospital.

Eight people were transported for treatment of their injuries after a deck holding 20 people collapsed in Ellicott City, Maryland. (Courtesy Howard County Fire and EMS) Courtesy Howard County Fire and EMS Howard County officials called the incident a “mass causality incident,” which they said “simply means the # of patients exceeds what can be managed by 1st arriving resources” on Twitter. (Courtesy Howard County Fire and EMS) Courtesy Howard County Fire and EMS ( 1 /2) Share This Gallery: Share on Facebook. Share on Twitter. Share via email. Print.

WASHINGTON — Eight people were transported for treatment of their injuries after a deck holding 20 people collapsed in Ellicott City, Maryland.

No one sustained life-threatening injuries, Howard County Fire and EMS said.

One of the eight patients from today’s deck collapse #MassCasualty Incident is placed on a stretcher and prepared for transport to a local hospital. pic.twitter.com/UbIUTvoWP4 — Howard Co Fire & EMS (@HCDFRS) September 23, 2018

Howard County Fire and EMS said they responded to the scene at the 4900 block of Bonnie Branch Road after getting multiple calls about a deck collapsing.

Howard County officials called the incident a “mass causality incident,” which they said “simply means the # of patients exceeds what can be managed by 1st arriving resources” on Twitter.

Great? s about “Mass Casualty Incident” (MCI). The term “casualty” refers to a person who is injured/killed. An MCI simply means the # of patients exceeds what can be managed by 1st arriving resources. With potential of 20+ patients, we declared an MCI — which sent more help. — Howard Co Fire & EMS (@HCDFRS) September 23, 2018

More than 40 firefighters and paramedics responded to the incident and immediately helped patients receive care based on the extent of their injuries.

Of the 20 people on the deck when it collapsed, only eight were transported for treatment of their injuries — three to the R. Adams Cowley Shock Trauma Center in Baltimore and the remainder to the hospital.

Below is a map of the area where the deck collapsed.