A man drove his vehicle through the front doors of a Church of Jesus Christ of Latter-day Saints and shot at least 10 people, killing two of them, local police in the US state of Michigan say.

The shooter got out of his vehicle firing an assault-style weapon, Grand Blanc Chief of Police William Renye said.

He added that hundreds of people were in the church, which was set on fire when the vehicle smashed into it.

Smoke billowed from the building as firefighters sprayed the blaze with water while fire trucks and emergency vehicles were parked nearby, footage on social media showed.

Police suspect the fire was intentionally set by the attacker.

Authorities believe they will find additional victims in the ruins, the chief said.

Police did not immediately release the name of the suspect,

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