BOSTON (CBS) – State Police were investigating a deadly crash in the Tip O’Neill Tunnel involving a pedestrian.

The crash happened around Exit 20 on the Southbound side Friday morning.

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Police say 75-year-old David Dang of Somerville had stepped out of a disabled car into the travel lane when he was hit and killed. He had apparently been involved in a “minor side swipe” crash prior to exiting his car.

The breakdown lane in that area of the tunnel is not wide enough to accommodate a car, and the victim’s vehicle was partially blocking the right travel lane.

WBZ-TV’s Christina Hager reports

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WBZ NewsRadio 1030’s Kim Tunnicliffe reports

The driver who struck Dang, a 64-year-old Ayer man, stopped at the scene and was interviewed by police.

Two lanes were shut down while police investigated.

Those lanes were reopened around 11:15 a.m.

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State Police urge drivers to stay seat-belted in their car and call 911 to report their location if their vehicle becomes disabled in a tunnel or on a road with no breakdown lane. If  you are able to get to one of the tunnel catwalks do so only if you can get on to it safely.