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Oklahoma City — Fire crews were called to I-44 and Lake Hefner Parkway early Saturday morning after a semi-truck plunged off a bridge.

Just after 2:30 a.m. the semi was towing another vehicle when he lost control hitting a guardrail and plunging over the bridge.

Crews said when they arrived at the scene the semi was fully engulfed in flames.

The driver had very minor injuries and refused treatment at the scene.