Firefighters extinguished a small brush fire that broke out Wednesday night on a hill above Lumahai River, the fourth brush fire on Kauai since Sunday.

The fire was reported to about 10:15 p.m., and firefighters responded to the fire adjacent to the area that burned over the weekend. It was deemed under control by 1:10 a.m. Thursday and fully extinguished by 2:20 a.m.

While the cause of this fire remains under investigation, fire officials are urging residents to be cautious.

"We are expecting a dry, hot summer this year which greatly increases the threat of brush fires," said Kaua’i Fire Chief Robert Westerman. "Prevention is key in protecting your property from wildfires."