CHELMSFORD, MASS. (WHDH) – A serious crash on 495-S in Chelmsford caused a big backup Tuesday morning.
A dump truck rolled over onto an SUV.
One person was seriously hurt and flown to the hospital.
Officials cleared the scene and the road was reopened shortly after 10 a.m.
This is a developing news story; stay with 7NEWS on-air and online for the latest details.
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