The northbound lanes of I-65 were closed after a truck accident and fire. (Credit: Indiana State Police)

The northbound lanes of I-65 were closed after a truck accident and fire. (Credit: Indiana State Police)

HOBART, Ind. (CBS) — Two people were injured and two trucks caught fire Tuesday morning after three semi-trucks crashed in Northwest Indiana.

The crash shut down all northbound lanes, and police had opened one lane by 8:15 a.m.

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The three semis crashed while traveling northbound on Interstate 65 near Ridge Road around 3:24 a.m., Indiana State Police said.

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A driver and passenger in one of the trucks were transported to an area hospital, but details on their conditions were not immediately known.

About an hour and a half later, while fire crews were still clearing the crash, two of the trucks burst in to flames, police said.

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All lanes on the interstate were blocked as of 7:10 a.m.