Update: One person is dead and others are injured after part of an overpass at FM 2484 fell on Interstate 35, according to the Texas Department of Transportation.

Trooper Harpin Myers said he didn’t know the extent of the injuries but that early reports indicate that two semi-trucks and two pickup trucks were involved a crash connected to the incident.

The Texas Department of Transportation has said that one semi-truck hit a beam on the overpass, which is under construction.

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Earlier update: A semi-truck was driving on Interstate 35 when it struck a beam on an overpass under construction at FM 2484, according to Jodi Wheatley, a spokeswoman for the Waco district of the Texas Department of Transportation.

The beam then fell on to vehicles on Interstate 35 in Salado, about 50 miles north of Austin, she said.

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It’s unclear if anyone was injured, or if anyone was on the overpass when it was struck around 11:30 a.m., but Wheatley said the situation is serious.

Wheatley said the overpass construction is part of a project to widen all bridges in the area by demolishing and rebuilding each one in portions.

TxDOT was in the proces of building the second half of the FM 2484 overpass when the truck struck it, she said.

A photo of the collapse posted on Twitter by KWTX shows large concrete beams cutting across the Interstate and obscuring a truck with a logo for C.R. England Global Transportation.

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Original report: A bridge has reportedly collapsed on Interstate 35 in Salado, according to the Bell County sheriff's office.

Traffic has stopped in both directions and state troopers and sheriff’s deputies are responding to the scene.

No further information was immediately available.

For the latest developments, visit statesman.com.