A newly opened bridge in China’s southwestern province of Sichuan has partially collapsed, creating a huge dust plume.

Authorities had closed the 758m (2,486ft) long Hongqi bridge on Monday after cracks appeared on nearby slopes and roads.

On Tuesday afternoon conditions on the mountainside worsened, triggering landslides that led to the collapse of part of the bridge, officials added.

There were no reports of casualties.

Construction of the bridge finished earlier this year, according to a social media post by contractors Sichuan Road and Bridge Group.

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