Story highlights Authorities believe the two shootings are connected

A suspect leads police on a wild chase, firing at multiple locations

A Census Bureau guard is in critical condition, a fire official says

Washington (CNN) Washington was rocked late Thursday by shootings -- one at the gates of the U.S. Census Bureau's headquarters and another in a popular area packed with restaurant patrons. The shootings were connected, authorities said.

They began with what authorities believe was a domestic kidnapping incident, according to D.C. Police Chief Cathy Lanier. The suspect's vehicle was spotted outside the Census Bureau, which is in Suitland, Maryland.

A guard apparently approached the vehicle and saw two people arguing.

That guard was then shot at least once in the upper body, said Prince George's County Fire Department spokesman Mark Brady.

The guard was in extremely critical condition, according to Brady.

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