The Napa County Sheriff's Office is investigation an assault Monday night that sent an 18-year-old Fairfield man to the hospital with multiple wounds.
"The victim suffered multiple wounds" during the 9:45 p.m. incident on rural Henry Road in south Napa, said sheriff's spokesperson Henry Wofford.
"We're not specifying what type of wounds," said Wofford, noting that detectives were still working the case. The victim is expected to survive, he said.
Anyone with information about the incident is asked to call detectives at 707-253-4591.
WATCH NOW: NAPA COUNTY WILDFIRES TAKE TOLL ON WINE COUNTRY LANDSCAPE
Thousands of fire-damaged trees are being removed at a cost of millions of dollars in the wake of Napa County wildfires.
SEE PHOTOS OF THE MOST EXPENSIVE HOME SOLD IN NAPA COUNTY IN JANUARYÂ
Photos: Check out the most expensive home sold in Napa County in January
1750 Dean York Lane, St. Helena

Check out the most expensive home sold in Napa County in January. Located at 1750 Dean York Lane, St. Helena, it sold for a cool $5 million. Source: Heidi Rickerd-Rizzo & Jen Long, Corcoran Global LivingÂ
1750 Dean York Lane

Check out the most expensive home sold in Napa County in January. Located at 1750 Dean York Lane, St. Helena, it sold for a cool $5 million. Source: Heidi Rickerd-Rizzo and Jen Long, Corcoran Global Living
1750 Dean York Lane, St. Helena

Check out the most expensive home sold in Napa County in January. Located at 1750 Dean York Lane, St. Helena, it sold for a cool $5 million. Source: Heidi Rickerd-Rizzo, Jen Long, Corcoran Global Living
1750 Dean York Lane, St. Helena

Check out the most expensive home sold in Napa County in January. Located at 1750 Dean York Lane, St. Helena, it sold for a cool $5 million. Source: Heidi Rickerd-Rizzo, Jen Long, Corcoran Global Living
1750 Dean York Lane, St. Helena

Check out the most expensive home sold in Napa County in January. Located at 1750 Dean York Lane, St. Helena, it sold for a cool $5 million. Source: Heidi Rickerd-Rizzo, Jen Long, Corcoran Global Living
1750 Dean York Lane, St. Helena

Check out the most expensive home sold in Napa County in January. Located at 1750 Dean York Lane, St. Helena, it sold for a cool $5 million. Source: Heidi Rickerd-Rizzo and Jen Long, Corcoran Global Living
1750 Dean York Lane, St. Helena

Check out the most expensive home sold in Napa County in January. Located at 1750 Dean York Lane, St. Helena, it sold for a cool $5 million. Source: Heidi Rickerd-Rizzo, Jen Long, Corcoran Global Living
1750 Dean York Lane, St. Helena

Check out the most expensive home sold in Napa County in January. Located at 1750 Dean York Lane, St. Helena, it sold for a cool $5 million. Source: Heidi Rickerd-Rizzo & Jen Long, Corcoran Global LivingÂ
1750 Dean York Lane, St. Helena

Check out the most expensive home sold in Napa County in January. Located at 1750 Dean York Lane, St. Helena, it sold for a cool $5 million. Source: Heidi Rickerd-Rizzo & Jen Long, Corcoran Global LivingÂ
1750 Dean York Lane, St. Helena

Check out the most expensive home sold in Napa County in January. Located at 1750 Dean York Lane, St. Helena, it sold for a cool $5 million. Source: Heidi Rickerd-Rizzo & Jen Long, Corcoran Global LivingÂ
1750 Dean York Lane, St. Helena

Check out the most expensive home sold in Napa County in January. Located at 1750 Dean York Lane, St. Helena, it sold for a cool $5 million. Source: Heidi Rickerd-Rizzo & Jen Long, Corcoran Global LivingÂ
1750 Dean York Lane, St. Helena

Check out the most expensive home sold in Napa County in January. Located at 1750 Dean York Lane, St. Helena, it sold for a cool $5 million. Source: Heidi Rickerd-Rizzo & Jen Long, Corcoran Global LivingÂ
Most-read police briefs on NapaValleyRegister.com
Here is a roundup of other police and fire reports in Napa County.
Napa police received multiple reports of a man destroying property as he walked through the central city.
A driver and her passenger were arrested on weapon allegations after a traffic stop for a Vehicle Code violation, Napa Police said.
A former employee at Wendy's restaurant on Trancas Street was arrested after a customer discovered a video camera in a bathroom stall.
FEB. 22:Â Two catalytic converter theft suspects were behind bars after a north Napa car owner interrupted thieves caught in the act of removin…
Napa Police were called to Raley's supermarket on Soscol Avenue where staff had detained a man suspected of stealing alcohol.
FEB. 26: American Canyon police took a report of a catalytic converter theft on Klamath Court, then located surveillance camera footage of the…
FEB. 17:Â City of Napa police responded to a report of a stolen vehicle at the 7-Eleven store at Silverado Trail and Clark Street. The victim l…
FEB. 18: A man driving a stolen vehicle fled from Napa County Sheriff’s officers, lost control and drove into a city of Napa house.