A propane tanker was struck and started leaking on Route 5 in East Windsor on Tuesday morning.
People were urged avoid both sides of Route 5 between Abby Road and Stoughton Road for safety reasons.
Police said the crash happened around 9 a.m. and it was weather-related.
The cab of a tractor-trailer hit the propane truck, which leaked, and the propane dissipated into the air by mid-afternoon. One of the drivers suffered minor injuries.
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The area was evacuated and power was turned off in the area, but power has been restored.
Crews from the state Department of Energy and Environmental Protection and Eversource were called to the scene.
The road was closed for several hours and reopened around 5 p.m.
