After a Central Texas boy crashed his all-terrain vehicle Saturday evening, things took a turn for the worse: He was bitten by a rattlesnake.

Williamson County Sheriff Robert Chody said the 12-year-old was riding the four-wheeler in the 3100 block of Live Oak Trail in Georgetown, about 30 miles north of Austin, when he crashed.

Then the rattler bit him, Chody said.

The boy's name and condition have not been released, and no further information was available.

A number of rattlesnake species range across Texas, and their bites can cause symptoms including blisters, necrosis, rapid heartbeat and problems with blood clotting.