LAS VEGAS (KLAS) — State wildlife officials are warning that dangerous toxins have been detected at Lahontan Reservoir, a popular recreation site in Northern Nevada.

A Harmful Algal Bloom (HAB) Danger Advisory has been put in place. Toxins produced by cyanobacteria can cause serious health issues for people and animals. A Nevada Department of Wildlife Facebook post advised caution when in contact with the water.

“These toxic algae can cause serious health issues for humans and animals. If you see water that looks discolored or smells bad, stay away,” the post advised.

HABs form when naturally occurring blue-green algae multiply quickly and cause discoloration, scum and mats on the water. It’s the first Danger Advisory posted by the state this summer. On July 15, a HAB Warning was issued for Little Washoe Lake between Reno and Carson City. Eight other lakes and reservoirs have been under a HAB Watch since July.

Lake Mead, Lake Mohave and Lake Las Vegas are all listed as “Waterbody clear” on the state’s dashboard.

The dashboard indicates there have been no reports of human or animal illnesses related to algae blooms in the state.

Lahontan State Recreation Area is about midway between Carson City and Fallon. It’s a popular fishing and boating site about 400 miles northwest of Las Vegas.

For more information and tips about HABs visit: https://ow.ly/yZbO50SueQL