A tractor trailer fire forced emergency crews to shut down Interstate 395 northbound on the Lisbon-Griswold line.
It broke out overnight, according to the Lisbon Fire Department, between exits 21 and 22.
Both sides of the highway were closed at one point; however, the southbound side reopened just before 4 a.m.
The cleanup continues.
There's no word on what caused the fire or if anyone was hurt.
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