Construction crews hit a gas main in the area of Farm Road at Helen Drive shortly before 10:40 a.m. on Wednesday.
According to online alerts, Eversource Gas has an estimated 20 minutes arrival time to address the issue.
The high pressure line that was hit, and subsequently in the roadway, has caused officials to evacuate area homes.
Find out what's happening in Marlboroughfor free with the latest updates from Patch.
Drivers are urged to avoid the area.
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