LaShauna Sewell, News9.com
OKLAHOMA CITY -- Some beaches are still closed at lakes across Oklahoma because of harmful blue-green algae.
The algae produces toxins harmful to humans and livestock. The intense heat across the state has helped it flourish in warm, stagnant waters.
The U.S. Army Corps of Engineers has updated the blue-green algae information for Oklahoma lakes. Swimming and other activities are prohibited at:
Advisories have also been issued for all areas at Fort Gibson, Eufaula, Keystone, Tenkiller, and Skiatook lakes.
Exposure to blue-green algae can cause nausea, headache, vomiting, abdominal pain, diarrhea, gastroenteritis, muscle weakness, pneumonia and paralysis.