A New Hampshire man was crushed to death as he tried to free a large boulder in his yard Monday night, according to Raymond police.

Police responded to the residence at Roy Street at 7:19 after the victim was discovered by his wife, who called 911.

The victim, Paul Comeau Jr., 47, had been working on removing the boulder from his yard over the past several months. He dug around the boulder in an attempt to free it.

Police say at one point the boulder became dislodged and pinned Comeau to the wall of the ditch.

The boulder was estimated to weigh around 6,000 pounds, and a tow truck was required to lift it off Comeau’s body. First responders to the scene said he was not conscious and not breathing. He was pronounced dead on the scene.