India, Nov. 13 -- A morning shooting rampage in the bustling Logan Circle neighbourhood of Washington, D.C., left one person dead and four others wounded, triggering an extensive security lockdown and a massive law enforcement response just blocks away from the White House.

The active shooter incident erupted shortly after 8:00 am on Thursday, beginning inside a crowded commercial fitness facility and spilling out onto surrounding thoroughfares during the morning rush hour.

Interim Chief of the Metropolitan Police Department Jeffery Carroll told reporters that the armed assailant opened fire on civilians before fleeing into an adjacent residential building, where he barricaded himself on the seventh floor. Heavily armed tactical units, ...