Interstate 95 South in West Haven was congested for hours Friday morning after a truck jackknifed, but the road has since cleared.
State police said they received a report of the crash around 5:45 a.m. and minor injuries were reported.
The crash happened near exit 42 and the I-95 South entrance ramp. The right and center lanes were closed.
State police said both vehicles involved in the crash sustained ruptured fuel tanks, causing diesel to spill onto the road.
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The state Department of Energy and Environmental Protection was notified and the Department of Consumer Protection was called to respond to the scene.
Both vehicles were towed from the scene. The accident remains under investigation.
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