The two off-duty law officers killed last (Friday) night on I-270 have now been identified as Federal Bureau of Investigation agent Carlos Wolff, 36, and Maryland Deputy Fire Marshal Sander Cohen, 33, who was also a lieutenant at the Rockville Volunteer Fire Department in Montgomery County, Maryland.
The identifications of the victims and their law enforcement agencies will be released later today, after families have been notified.
Maryland State Police are scheduled to hold a press conference at 10 a.m.in Rockville to provide additional details about the crash.
Maryland State Police say an off-duty officer contacted them and requested assistance for a single-car crash in the fast lane of southbound I-270, north of Gude Drive. The off-duty officer blocked the crash scene with his personal vehicle and activated his emergency flashers. His actions placed him in an official capacity at that time.
The officer then learned the driver of the disabled vehicle was also an officer.
As the driver of the damaged vehicle - also a law enforcement officer - stood with the other officer, a auto swerved and struck both men.
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Zhang said that Chinese border troops "have conducted identification and verification over the vehicle". Sources said India will, through diplomatic channels, seek its return.
The main lanes are now closed in both directions as investigators look at a massive crash.
At least two other people were taken to hospitals with injuries that did not appear life threatening, Piringer said. The other was transported to Suburban Hospital where he was pronounced dead.
Investigators say preliminarily, they do not believe alcohol was involved in the two crashes.
The crash happened around 10 p.m. on the main lanes of southbound I-270, south of the Falls Road exit, according to Montgomery County Fire and Rescue Service spokesman Pete Piringer.
Charges have not yet been filed. Upon completion of the investigation, it will be presented to the Montgomery County State's Attorney's Office for review. One officer had crashed his own vehicle on the highway and the other had stopped to help when the second vehicle struck them, police said.