March 20, 2014 7:36 AM EDT

A commuter train crashed into a minibus in southern Turkey on Thursday, killing nine people and injuring several others.

The shuttle bus was hit on a railway crossing as it carried workers to an industrial zone in the province of Mersin, the Associated Press reports. All of the dead were on the minibus, and no one on the train was hurt.

The local governor, Basri Guzeloglu, said the cause of the accident is under investigation, though local media reports say the barrier arms at the crossing were up as a result of a signaling failure.

[AP]

Write to Noah Rayman at noah.rayman@time.com.

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