As a result of a mosquito sample taken in Blydenburgh County Park in Smithtown that tested positive for West Nile virus, the Smithtown park will be closed to nighttime activities from 6 p.m. to 8 a.m., according to the Suffolk County health department.

The health department will continue mosquito surveillance there and will work with the parks department "to determine if and when nighttime activities may resume," according to a news release issued Monday by the Suffolk County Department of Health Services.

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Overnight campers can move to a different county campground or get a refund on days for which they prepaid, the release says. For more information, campers can call the parks department at 631-854-4949.

The positive sample, taken between July 10 and 12, had earlier been reported as being found in Southampton, the health department said, and later discovered to be from the park. So far this year, there have been no West Nile virus-positive samples found in Southampton, the department said.